/usr/bin/java -Xmx8000000000 -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-more-queue-add-3-nl.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:20:24,733 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:20:24,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:20:24,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:20:24,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:20:24,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:20:24,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:20:24,816 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 [2022-03-15 14:20:24,830 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:20:24,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:20:24,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:20:24,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:20:24,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:20:24,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:20:24,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:20:24,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:20:24,831 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:20:24,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:20:24,832 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:20:24,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:20:24,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:20:24,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:20:24,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:20:24,834 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:20:24,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:20:24,834 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:20:25,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:20:25,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:20:25,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:20:25,018 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:20:25,020 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:20:25,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-03-15 14:20:25,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06040012a/2d247f976e9a4c4c8ecec1d9f85120d2/FLAG99f910e6d [2022-03-15 14:20:25,390 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:20:25,390 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2022-03-15 14:20:25,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06040012a/2d247f976e9a4c4c8ecec1d9f85120d2/FLAG99f910e6d [2022-03-15 14:20:25,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06040012a/2d247f976e9a4c4c8ecec1d9f85120d2 [2022-03-15 14:20:25,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:20:25,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:20:25,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:20:25,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:20:25,830 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:20:25,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:20:25" (1/1) ... [2022-03-15 14:20:25,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d876e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:25, skipping insertion in model container [2022-03-15 14:20:25,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:20:25" (1/1) ... [2022-03-15 14:20:25,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:20:25,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:20:25,997 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-more-queue-add-3-nl.wvr.c[3615,3628] [2022-03-15 14:20:26,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:20:26,015 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:20:26,031 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-more-queue-add-3-nl.wvr.c[3615,3628] [2022-03-15 14:20:26,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:20:26,042 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:20:26,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26 WrapperNode [2022-03-15 14:20:26,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:20:26,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:20:26,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:20:26,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:20:26,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,073 INFO L137 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 18, statements flattened = 257 [2022-03-15 14:20:26,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:20:26,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:20:26,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:20:26,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:20:26,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:20:26,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:20:26,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:20:26,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:20:26,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (1/1) ... [2022-03-15 14:20:26,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:20:26,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:20:26,152 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) [2022-03-15 14:20:26,159 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 [2022-03-15 14:20:26,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:20:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:20:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:20:26,183 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:20:26,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:20:26,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:20:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:20:26,185 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:20:26,249 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:20:26,250 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:20:26,502 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:20:26,579 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:20:26,580 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-03-15 14:20:26,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:20:26 BoogieIcfgContainer [2022-03-15 14:20:26,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:20:26,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:20:26,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:20:26,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:20:26,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:20:25" (1/3) ... [2022-03-15 14:20:26,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b9c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:20:26, skipping insertion in model container [2022-03-15 14:20:26,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:20:26" (2/3) ... [2022-03-15 14:20:26,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b9c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:20:26, skipping insertion in model container [2022-03-15 14:20:26,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:20:26" (3/3) ... [2022-03-15 14:20:26,588 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2022-03-15 14:20:26,591 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:20:26,591 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:20:26,591 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:20:26,591 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:20:26,639 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,640 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,641 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,641 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,641 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,641 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,643 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,644 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,645 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,646 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,647 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,648 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,648 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,648 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,649 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,650 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,651 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,652 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,653 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,654 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,655 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,656 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,658 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,659 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,660 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,662 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,663 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~j~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,668 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,669 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,670 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,670 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,670 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~k~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:20:26,681 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 14:20:26,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:20:26,722 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, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:20:26,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 14:20:26,734 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 215 places, 223 transitions, 470 flow [2022-03-15 14:20:26,971 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 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) [2022-03-15 14:20:26,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 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) [2022-03-15 14:20:27,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-15 14:20:27,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:27,054 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] [2022-03-15 14:20:27,054 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:27,061 INFO L85 PathProgramCache]: Analyzing trace with hash -559935921, now seen corresponding path program 1 times [2022-03-15 14:20:27,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:27,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570443566] [2022-03-15 14:20:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:27,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:27,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:20:27,306 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:27,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570443566] [2022-03-15 14:20:27,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570443566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:27,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:27,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:20:27,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916314993] [2022-03-15 14:20:27,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:27,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:20:27,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:27,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:20:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:20:27,368 INFO L87 Difference]: Start difference. First operand has 6644 states, 6643 states have (on average 3.9626674695167847) internal successors, (26324), 6643 states have internal predecessors, (26324), 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 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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) [2022-03-15 14:20:27,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:27,474 INFO L93 Difference]: Finished difference Result 6644 states and 23512 transitions. [2022-03-15 14:20:27,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:20:27,477 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 159 [2022-03-15 14:20:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:27,535 INFO L225 Difference]: With dead ends: 6644 [2022-03-15 14:20:27,535 INFO L226 Difference]: Without dead ends: 6638 [2022-03-15 14:20:27,536 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 [2022-03-15 14:20:27,538 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:27,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:20:27,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2022-03-15 14:20:27,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 6638. [2022-03-15 14:20:27,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 6637 states have (on average 3.5416603887298477) internal successors, (23506), 6637 states have internal predecessors, (23506), 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) [2022-03-15 14:20:27,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 23506 transitions. [2022-03-15 14:20:27,878 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 23506 transitions. Word has length 159 [2022-03-15 14:20:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:27,880 INFO L470 AbstractCegarLoop]: Abstraction has 6638 states and 23506 transitions. [2022-03-15 14:20:27,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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) [2022-03-15 14:20:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 23506 transitions. [2022-03-15 14:20:27,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-15 14:20:27,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:27,902 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] [2022-03-15 14:20:27,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:20:27,903 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:27,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:27,905 INFO L85 PathProgramCache]: Analyzing trace with hash 864045723, now seen corresponding path program 1 times [2022-03-15 14:20:27,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:27,906 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94328314] [2022-03-15 14:20:27,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:27,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:20:28,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:28,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94328314] [2022-03-15 14:20:28,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94328314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:28,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:28,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:20:28,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069933008] [2022-03-15 14:20:28,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:28,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:20:28,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:28,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:20:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:20:28,136 INFO L87 Difference]: Start difference. First operand 6638 states and 23506 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2022-03-15 14:20:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:28,293 INFO L93 Difference]: Finished difference Result 7452 states and 25924 transitions. [2022-03-15 14:20:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:20:28,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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 168 [2022-03-15 14:20:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:28,329 INFO L225 Difference]: With dead ends: 7452 [2022-03-15 14:20:28,329 INFO L226 Difference]: Without dead ends: 6644 [2022-03-15 14:20:28,330 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 [2022-03-15 14:20:28,331 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:28,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 615 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:20:28,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6644 states. [2022-03-15 14:20:28,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6644 to 6639. [2022-03-15 14:20:28,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6638 states have (on average 3.5412774932208495) internal successors, (23507), 6638 states have internal predecessors, (23507), 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) [2022-03-15 14:20:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 23507 transitions. [2022-03-15 14:20:28,535 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 23507 transitions. Word has length 168 [2022-03-15 14:20:28,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:28,537 INFO L470 AbstractCegarLoop]: Abstraction has 6639 states and 23507 transitions. [2022-03-15 14:20:28,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 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) [2022-03-15 14:20:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 23507 transitions. [2022-03-15 14:20:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-03-15 14:20:28,558 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:28,558 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] [2022-03-15 14:20:28,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:20:28,559 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:28,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1179599516, now seen corresponding path program 1 times [2022-03-15 14:20:28,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:28,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243554893] [2022-03-15 14:20:28,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:28,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:20:28,713 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:28,713 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243554893] [2022-03-15 14:20:28,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243554893] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:28,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:28,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:20:28,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524686978] [2022-03-15 14:20:28,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:28,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:20:28,715 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:28,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:20:28,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:20:28,715 INFO L87 Difference]: Start difference. First operand 6639 states and 23507 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2022-03-15 14:20:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:28,867 INFO L93 Difference]: Finished difference Result 8112 states and 28002 transitions. [2022-03-15 14:20:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:20:28,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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 175 [2022-03-15 14:20:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:28,903 INFO L225 Difference]: With dead ends: 8112 [2022-03-15 14:20:28,903 INFO L226 Difference]: Without dead ends: 6645 [2022-03-15 14:20:28,905 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 [2022-03-15 14:20:28,908 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 410 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:28,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [410 Valid, 554 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:20:28,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6645 states. [2022-03-15 14:20:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6645 to 6640. [2022-03-15 14:20:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6640 states, 6639 states have (on average 3.5408947130591955) internal successors, (23508), 6639 states have internal predecessors, (23508), 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) [2022-03-15 14:20:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6640 states to 6640 states and 23508 transitions. [2022-03-15 14:20:29,126 INFO L78 Accepts]: Start accepts. Automaton has 6640 states and 23508 transitions. Word has length 175 [2022-03-15 14:20:29,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:29,127 INFO L470 AbstractCegarLoop]: Abstraction has 6640 states and 23508 transitions. [2022-03-15 14:20:29,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 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) [2022-03-15 14:20:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand 6640 states and 23508 transitions. [2022-03-15 14:20:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:29,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:29,144 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] [2022-03-15 14:20:29,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:20:29,144 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:29,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:29,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1706711251, now seen corresponding path program 1 times [2022-03-15 14:20:29,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:29,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858796492] [2022-03-15 14:20:29,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:29,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:30,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:30,081 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858796492] [2022-03-15 14:20:30,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858796492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:30,081 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:30,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:30,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343840333] [2022-03-15 14:20:30,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:30,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:30,081 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:30,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:30,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:30,082 INFO L87 Difference]: Start difference. First operand 6640 states and 23508 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:30,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:30,845 INFO L93 Difference]: Finished difference Result 14626 states and 52262 transitions. [2022-03-15 14:20:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:30,846 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:30,898 INFO L225 Difference]: With dead ends: 14626 [2022-03-15 14:20:30,899 INFO L226 Difference]: Without dead ends: 14476 [2022-03-15 14:20:30,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:30,900 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 605 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:30,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 2864 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 810 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-15 14:20:30,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14476 states. [2022-03-15 14:20:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14476 to 7934. [2022-03-15 14:20:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7934 states, 7933 states have (on average 3.4975419135257786) internal successors, (27746), 7933 states have internal predecessors, (27746), 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) [2022-03-15 14:20:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7934 states to 7934 states and 27746 transitions. [2022-03-15 14:20:31,236 INFO L78 Accepts]: Start accepts. Automaton has 7934 states and 27746 transitions. Word has length 182 [2022-03-15 14:20:31,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:31,237 INFO L470 AbstractCegarLoop]: Abstraction has 7934 states and 27746 transitions. [2022-03-15 14:20:31,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand 7934 states and 27746 transitions. [2022-03-15 14:20:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:31,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:31,255 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] [2022-03-15 14:20:31,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:20:31,255 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:31,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:31,256 INFO L85 PathProgramCache]: Analyzing trace with hash -243046637, now seen corresponding path program 2 times [2022-03-15 14:20:31,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:31,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961249460] [2022-03-15 14:20:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:31,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:31,823 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:31,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961249460] [2022-03-15 14:20:31,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961249460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:31,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:31,823 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:31,823 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606656471] [2022-03-15 14:20:31,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:31,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:31,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:31,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:31,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:31,824 INFO L87 Difference]: Start difference. First operand 7934 states and 27746 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:32,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:32,376 INFO L93 Difference]: Finished difference Result 14222 states and 50838 transitions. [2022-03-15 14:20:32,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:20:32,376 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:32,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:32,424 INFO L225 Difference]: With dead ends: 14222 [2022-03-15 14:20:32,424 INFO L226 Difference]: Without dead ends: 14072 [2022-03-15 14:20:32,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:32,425 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 463 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2721 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:32,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2721 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:32,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14072 states. [2022-03-15 14:20:32,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14072 to 8942. [2022-03-15 14:20:32,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8942 states, 8941 states have (on average 3.486858293255788) internal successors, (31176), 8941 states have internal predecessors, (31176), 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) [2022-03-15 14:20:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8942 states to 8942 states and 31176 transitions. [2022-03-15 14:20:32,698 INFO L78 Accepts]: Start accepts. Automaton has 8942 states and 31176 transitions. Word has length 182 [2022-03-15 14:20:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:32,699 INFO L470 AbstractCegarLoop]: Abstraction has 8942 states and 31176 transitions. [2022-03-15 14:20:32,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:32,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8942 states and 31176 transitions. [2022-03-15 14:20:32,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:32,722 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:32,722 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] [2022-03-15 14:20:32,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:20:32,722 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:32,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:32,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1793467055, now seen corresponding path program 3 times [2022-03-15 14:20:32,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:32,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284882352] [2022-03-15 14:20:32,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:32,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:33,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:33,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284882352] [2022-03-15 14:20:33,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284882352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:33,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:33,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:33,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12351386] [2022-03-15 14:20:33,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:33,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:33,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:33,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:33,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:33,297 INFO L87 Difference]: Start difference. First operand 8942 states and 31176 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:34,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:34,069 INFO L93 Difference]: Finished difference Result 15685 states and 55678 transitions. [2022-03-15 14:20:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:34,070 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:34,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:34,122 INFO L225 Difference]: With dead ends: 15685 [2022-03-15 14:20:34,122 INFO L226 Difference]: Without dead ends: 15535 [2022-03-15 14:20:34,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:34,123 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 645 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:34,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 2755 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:20:34,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15535 states. [2022-03-15 14:20:34,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15535 to 9208. [2022-03-15 14:20:34,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 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) [2022-03-15 14:20:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-15 14:20:34,398 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-15 14:20:34,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:34,399 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-15 14:20:34,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-15 14:20:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:34,419 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:34,419 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] [2022-03-15 14:20:34,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:20:34,420 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:34,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:34,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1762356665, now seen corresponding path program 4 times [2022-03-15 14:20:34,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:34,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117984139] [2022-03-15 14:20:34,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:34,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:34,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:34,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117984139] [2022-03-15 14:20:34,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117984139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:34,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:34,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:34,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633762489] [2022-03-15 14:20:34,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:34,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:34,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:34,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:34,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:34,958 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:35,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:35,605 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-03-15 14:20:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:35,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:35,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:35,660 INFO L225 Difference]: With dead ends: 15244 [2022-03-15 14:20:35,660 INFO L226 Difference]: Without dead ends: 15094 [2022-03-15 14:20:35,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=472, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:35,661 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 577 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:35,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 2576 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:20:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-03-15 14:20:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-03-15 14:20:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 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) [2022-03-15 14:20:35,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-15 14:20:35,941 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-15 14:20:35,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:35,941 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-15 14:20:35,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:35,942 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-15 14:20:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:35,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:35,963 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] [2022-03-15 14:20:35,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 14:20:35,964 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash -988028945, now seen corresponding path program 5 times [2022-03-15 14:20:35,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:35,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766171437] [2022-03-15 14:20:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:36,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:36,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:36,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766171437] [2022-03-15 14:20:36,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766171437] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:36,552 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:36,552 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:36,552 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766046947] [2022-03-15 14:20:36,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:36,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:36,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:36,553 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:37,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:37,188 INFO L93 Difference]: Finished difference Result 15244 states and 54483 transitions. [2022-03-15 14:20:37,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:37,188 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:37,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:37,234 INFO L225 Difference]: With dead ends: 15244 [2022-03-15 14:20:37,235 INFO L226 Difference]: Without dead ends: 15094 [2022-03-15 14:20:37,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:37,235 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 539 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:37,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 2571 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:20:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15094 states. [2022-03-15 14:20:37,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15094 to 9208. [2022-03-15 14:20:37,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9208 states, 9207 states have (on average 3.4963614641033995) internal successors, (32191), 9207 states have internal predecessors, (32191), 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) [2022-03-15 14:20:37,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9208 states to 9208 states and 32191 transitions. [2022-03-15 14:20:37,529 INFO L78 Accepts]: Start accepts. Automaton has 9208 states and 32191 transitions. Word has length 182 [2022-03-15 14:20:37,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:37,530 INFO L470 AbstractCegarLoop]: Abstraction has 9208 states and 32191 transitions. [2022-03-15 14:20:37,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:37,530 INFO L276 IsEmpty]: Start isEmpty. Operand 9208 states and 32191 transitions. [2022-03-15 14:20:37,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:37,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:37,547 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] [2022-03-15 14:20:37,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 14:20:37,548 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1830217275, now seen corresponding path program 6 times [2022-03-15 14:20:37,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:37,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831711043] [2022-03-15 14:20:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:38,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:38,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831711043] [2022-03-15 14:20:38,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831711043] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:38,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:38,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:38,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200442957] [2022-03-15 14:20:38,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:38,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:38,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:38,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:38,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:38,075 INFO L87 Difference]: Start difference. First operand 9208 states and 32191 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:38,680 INFO L93 Difference]: Finished difference Result 16354 states and 58195 transitions. [2022-03-15 14:20:38,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:38,681 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:38,730 INFO L225 Difference]: With dead ends: 16354 [2022-03-15 14:20:38,730 INFO L226 Difference]: Without dead ends: 16204 [2022-03-15 14:20:38,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:38,731 INFO L933 BasicCegarLoop]: 295 mSDtfsCounter, 503 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:38,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [503 Valid, 2582 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:38,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16204 states. [2022-03-15 14:20:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16204 to 9320. [2022-03-15 14:20:38,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9320 states, 9319 states have (on average 3.495546732482026) internal successors, (32575), 9319 states have internal predecessors, (32575), 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) [2022-03-15 14:20:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9320 states to 9320 states and 32575 transitions. [2022-03-15 14:20:38,962 INFO L78 Accepts]: Start accepts. Automaton has 9320 states and 32575 transitions. Word has length 182 [2022-03-15 14:20:38,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:38,962 INFO L470 AbstractCegarLoop]: Abstraction has 9320 states and 32575 transitions. [2022-03-15 14:20:38,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:38,963 INFO L276 IsEmpty]: Start isEmpty. Operand 9320 states and 32575 transitions. [2022-03-15 14:20:38,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:38,980 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:38,980 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] [2022-03-15 14:20:38,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:20:38,981 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:38,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:38,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1356367291, now seen corresponding path program 7 times [2022-03-15 14:20:38,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:38,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721365259] [2022-03-15 14:20:38,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:38,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:39,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:39,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721365259] [2022-03-15 14:20:39,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721365259] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:39,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:39,395 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:39,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115213877] [2022-03-15 14:20:39,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:39,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:39,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:39,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:39,396 INFO L87 Difference]: Start difference. First operand 9320 states and 32575 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:39,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:39,974 INFO L93 Difference]: Finished difference Result 15118 states and 54397 transitions. [2022-03-15 14:20:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:20:39,974 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:39,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:40,017 INFO L225 Difference]: With dead ends: 15118 [2022-03-15 14:20:40,017 INFO L226 Difference]: Without dead ends: 14896 [2022-03-15 14:20:40,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:40,018 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 350 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:40,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [350 Valid, 2988 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:20:40,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14896 states. [2022-03-15 14:20:40,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14896 to 9504. [2022-03-15 14:20:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9504 states, 9503 states have (on average 3.500473534673261) internal successors, (33265), 9503 states have internal predecessors, (33265), 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) [2022-03-15 14:20:40,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9504 states to 9504 states and 33265 transitions. [2022-03-15 14:20:40,293 INFO L78 Accepts]: Start accepts. Automaton has 9504 states and 33265 transitions. Word has length 182 [2022-03-15 14:20:40,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:40,293 INFO L470 AbstractCegarLoop]: Abstraction has 9504 states and 33265 transitions. [2022-03-15 14:20:40,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:40,293 INFO L276 IsEmpty]: Start isEmpty. Operand 9504 states and 33265 transitions. [2022-03-15 14:20:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:40,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:40,310 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] [2022-03-15 14:20:40,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 14:20:40,311 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:40,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:40,311 INFO L85 PathProgramCache]: Analyzing trace with hash 2099447355, now seen corresponding path program 8 times [2022-03-15 14:20:40,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:40,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438189338] [2022-03-15 14:20:40,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:40,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:40,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:40,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438189338] [2022-03-15 14:20:40,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438189338] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:40,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:40,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:40,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928666805] [2022-03-15 14:20:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:40,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:40,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:40,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:40,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:40,772 INFO L87 Difference]: Start difference. First operand 9504 states and 33265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:41,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:41,303 INFO L93 Difference]: Finished difference Result 16088 states and 57607 transitions. [2022-03-15 14:20:41,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:41,303 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:41,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:41,346 INFO L225 Difference]: With dead ends: 16088 [2022-03-15 14:20:41,346 INFO L226 Difference]: Without dead ends: 15938 [2022-03-15 14:20:41,346 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:41,347 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 537 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 2245 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:41,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 2245 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:41,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15938 states. [2022-03-15 14:20:41,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15938 to 9568. [2022-03-15 14:20:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 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) [2022-03-15 14:20:41,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-15 14:20:41,573 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-15 14:20:41,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:41,574 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-15 14:20:41,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:41,574 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-15 14:20:41,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:41,590 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:41,590 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] [2022-03-15 14:20:41,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 14:20:41,590 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:41,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:41,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1387220523, now seen corresponding path program 9 times [2022-03-15 14:20:41,591 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:41,591 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247414473] [2022-03-15 14:20:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:41,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:42,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:42,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:42,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247414473] [2022-03-15 14:20:42,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247414473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:42,088 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:42,088 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:42,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25280782] [2022-03-15 14:20:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:42,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:42,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:42,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:42,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:42,089 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:42,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:42,663 INFO L93 Difference]: Finished difference Result 15772 states and 56589 transitions. [2022-03-15 14:20:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:42,663 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:42,706 INFO L225 Difference]: With dead ends: 15772 [2022-03-15 14:20:42,706 INFO L226 Difference]: Without dead ends: 15622 [2022-03-15 14:20:42,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=468, Unknown=0, NotChecked=0, Total=600 [2022-03-15 14:20:42,706 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 458 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2624 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:42,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2624 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:42,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15622 states. [2022-03-15 14:20:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15622 to 9568. [2022-03-15 14:20:42,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 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) [2022-03-15 14:20:42,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-15 14:20:42,994 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-15 14:20:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:42,994 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-15 14:20:42,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:42,995 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-15 14:20:43,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:43,012 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:43,012 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] [2022-03-15 14:20:43,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 14:20:43,012 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:43,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:43,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1183078429, now seen corresponding path program 10 times [2022-03-15 14:20:43,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:43,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525425881] [2022-03-15 14:20:43,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:43,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:43,537 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:43,537 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525425881] [2022-03-15 14:20:43,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525425881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:43,537 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:43,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:43,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211034104] [2022-03-15 14:20:43,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:43,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:43,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:43,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:43,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:43,538 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:44,097 INFO L93 Difference]: Finished difference Result 15732 states and 56439 transitions. [2022-03-15 14:20:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-15 14:20:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:44,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:44,142 INFO L225 Difference]: With dead ends: 15732 [2022-03-15 14:20:44,142 INFO L226 Difference]: Without dead ends: 15582 [2022-03-15 14:20:44,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:44,143 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 451 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:44,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 2539 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:44,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15582 states. [2022-03-15 14:20:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15582 to 9568. [2022-03-15 14:20:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9568 states, 9567 states have (on average 3.5054876136719977) internal successors, (33537), 9567 states have internal predecessors, (33537), 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) [2022-03-15 14:20:44,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9568 states to 9568 states and 33537 transitions. [2022-03-15 14:20:44,365 INFO L78 Accepts]: Start accepts. Automaton has 9568 states and 33537 transitions. Word has length 182 [2022-03-15 14:20:44,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:44,365 INFO L470 AbstractCegarLoop]: Abstraction has 9568 states and 33537 transitions. [2022-03-15 14:20:44,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:44,365 INFO L276 IsEmpty]: Start isEmpty. Operand 9568 states and 33537 transitions. [2022-03-15 14:20:44,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:44,386 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:44,386 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] [2022-03-15 14:20:44,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 14:20:44,386 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:44,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:44,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1817055227, now seen corresponding path program 11 times [2022-03-15 14:20:44,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:44,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154215711] [2022-03-15 14:20:44,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:44,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:44,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:44,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154215711] [2022-03-15 14:20:44,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154215711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:44,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:44,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:44,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19494208] [2022-03-15 14:20:44,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:44,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:44,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:44,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:44,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:44,801 INFO L87 Difference]: Start difference. First operand 9568 states and 33537 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:45,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:45,264 INFO L93 Difference]: Finished difference Result 14869 states and 53304 transitions. [2022-03-15 14:20:45,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:45,264 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:45,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:45,305 INFO L225 Difference]: With dead ends: 14869 [2022-03-15 14:20:45,305 INFO L226 Difference]: Without dead ends: 14719 [2022-03-15 14:20:45,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:45,306 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 343 mSDsluCounter, 2443 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:45,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [343 Valid, 2386 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14719 states. [2022-03-15 14:20:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14719 to 9792. [2022-03-15 14:20:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 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) [2022-03-15 14:20:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-15 14:20:45,519 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-15 14:20:45,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:45,519 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-15 14:20:45,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-15 14:20:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:45,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:45,536 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] [2022-03-15 14:20:45,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 14:20:45,537 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2063128839, now seen corresponding path program 12 times [2022-03-15 14:20:45,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:45,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052060081] [2022-03-15 14:20:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:45,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:45,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052060081] [2022-03-15 14:20:45,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052060081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:45,982 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:45,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:45,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456248805] [2022-03-15 14:20:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:45,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:45,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:45,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:45,983 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:46,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:46,494 INFO L93 Difference]: Finished difference Result 14770 states and 53097 transitions. [2022-03-15 14:20:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:46,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:46,537 INFO L225 Difference]: With dead ends: 14770 [2022-03-15 14:20:46,538 INFO L226 Difference]: Without dead ends: 14548 [2022-03-15 14:20:46,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:46,538 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 489 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:46,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [489 Valid, 2262 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:46,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2022-03-15 14:20:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 9792. [2022-03-15 14:20:46,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 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) [2022-03-15 14:20:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-15 14:20:46,788 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-15 14:20:46,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:46,789 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-15 14:20:46,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-15 14:20:46,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:46,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:46,807 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] [2022-03-15 14:20:46,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 14:20:46,807 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:46,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:46,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1986285691, now seen corresponding path program 13 times [2022-03-15 14:20:46,808 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:46,808 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611607888] [2022-03-15 14:20:46,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:46,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:47,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:47,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611607888] [2022-03-15 14:20:47,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611607888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:47,281 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:47,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:47,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551411769] [2022-03-15 14:20:47,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:47,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:47,282 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:47,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:47,283 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:47,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:47,817 INFO L93 Difference]: Finished difference Result 15499 states and 55404 transitions. [2022-03-15 14:20:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:47,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:47,861 INFO L225 Difference]: With dead ends: 15499 [2022-03-15 14:20:47,861 INFO L226 Difference]: Without dead ends: 15349 [2022-03-15 14:20:47,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:47,862 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 407 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:47,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2704 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:47,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15349 states. [2022-03-15 14:20:48,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15349 to 9897. [2022-03-15 14:20:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9897 states, 9896 states have (on average 3.5198059822150363) internal successors, (34832), 9896 states have internal predecessors, (34832), 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) [2022-03-15 14:20:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9897 states to 9897 states and 34832 transitions. [2022-03-15 14:20:48,119 INFO L78 Accepts]: Start accepts. Automaton has 9897 states and 34832 transitions. Word has length 182 [2022-03-15 14:20:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:48,119 INFO L470 AbstractCegarLoop]: Abstraction has 9897 states and 34832 transitions. [2022-03-15 14:20:48,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9897 states and 34832 transitions. [2022-03-15 14:20:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:48,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:48,136 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] [2022-03-15 14:20:48,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 14:20:48,137 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:48,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1909051591, now seen corresponding path program 14 times [2022-03-15 14:20:48,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:48,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788536816] [2022-03-15 14:20:48,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:48,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:48,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:48,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788536816] [2022-03-15 14:20:48,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788536816] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:48,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:48,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:48,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855022591] [2022-03-15 14:20:48,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:48,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:48,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:48,629 INFO L87 Difference]: Start difference. First operand 9897 states and 34832 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:49,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:49,133 INFO L93 Difference]: Finished difference Result 15868 states and 56775 transitions. [2022-03-15 14:20:49,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:49,133 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:49,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:49,175 INFO L225 Difference]: With dead ends: 15868 [2022-03-15 14:20:49,175 INFO L226 Difference]: Without dead ends: 15718 [2022-03-15 14:20:49,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:49,176 INFO L933 BasicCegarLoop]: 265 mSDtfsCounter, 458 mSDsluCounter, 2553 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:49,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [458 Valid, 2504 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:49,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15718 states. [2022-03-15 14:20:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15718 to 9792. [2022-03-15 14:20:49,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 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) [2022-03-15 14:20:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-15 14:20:49,390 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-15 14:20:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:49,390 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-15 14:20:49,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-15 14:20:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:49,408 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:49,408 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] [2022-03-15 14:20:49,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 14:20:49,408 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1735467003, now seen corresponding path program 15 times [2022-03-15 14:20:49,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:49,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594488081] [2022-03-15 14:20:49,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:49,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:49,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:49,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594488081] [2022-03-15 14:20:49,872 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594488081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:49,872 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:49,872 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:49,872 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320380940] [2022-03-15 14:20:49,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:49,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:49,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:49,873 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:50,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:50,363 INFO L93 Difference]: Finished difference Result 15130 states and 54471 transitions. [2022-03-15 14:20:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:50,363 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:50,466 INFO L225 Difference]: With dead ends: 15130 [2022-03-15 14:20:50,466 INFO L226 Difference]: Without dead ends: 14908 [2022-03-15 14:20:50,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:50,467 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 374 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:50,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [374 Valid, 2317 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14908 states. [2022-03-15 14:20:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14908 to 9824. [2022-03-15 14:20:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9824 states, 9823 states have (on average 3.512674335742645) internal successors, (34505), 9823 states have internal predecessors, (34505), 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) [2022-03-15 14:20:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9824 states to 9824 states and 34505 transitions. [2022-03-15 14:20:50,667 INFO L78 Accepts]: Start accepts. Automaton has 9824 states and 34505 transitions. Word has length 182 [2022-03-15 14:20:50,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:50,668 INFO L470 AbstractCegarLoop]: Abstraction has 9824 states and 34505 transitions. [2022-03-15 14:20:50,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 9824 states and 34505 transitions. [2022-03-15 14:20:50,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:50,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:50,685 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] [2022-03-15 14:20:50,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 14:20:50,685 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:50,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:50,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1722757253, now seen corresponding path program 16 times [2022-03-15 14:20:50,686 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:50,686 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913262319] [2022-03-15 14:20:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:50,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:51,101 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:51,101 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913262319] [2022-03-15 14:20:51,101 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913262319] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:51,101 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:51,101 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:51,101 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860398905] [2022-03-15 14:20:51,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:51,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:51,102 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:51,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:51,102 INFO L87 Difference]: Start difference. First operand 9824 states and 34505 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:51,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:51,542 INFO L93 Difference]: Finished difference Result 15598 states and 56025 transitions. [2022-03-15 14:20:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:51,543 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:51,586 INFO L225 Difference]: With dead ends: 15598 [2022-03-15 14:20:51,586 INFO L226 Difference]: Without dead ends: 15448 [2022-03-15 14:20:51,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:51,586 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 528 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:51,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1932 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:51,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15448 states. [2022-03-15 14:20:51,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15448 to 9792. [2022-03-15 14:20:51,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9792 states, 9791 states have (on average 3.511081605556123) internal successors, (34377), 9791 states have internal predecessors, (34377), 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) [2022-03-15 14:20:51,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9792 states to 9792 states and 34377 transitions. [2022-03-15 14:20:51,810 INFO L78 Accepts]: Start accepts. Automaton has 9792 states and 34377 transitions. Word has length 182 [2022-03-15 14:20:51,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:51,810 INFO L470 AbstractCegarLoop]: Abstraction has 9792 states and 34377 transitions. [2022-03-15 14:20:51,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 9792 states and 34377 transitions. [2022-03-15 14:20:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:51,828 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:51,828 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] [2022-03-15 14:20:51,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 14:20:51,828 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash 977182485, now seen corresponding path program 17 times [2022-03-15 14:20:51,829 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:51,829 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574678689] [2022-03-15 14:20:51,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:51,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:52,279 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:52,279 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574678689] [2022-03-15 14:20:52,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574678689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:52,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:52,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:52,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182096380] [2022-03-15 14:20:52,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:52,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:52,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:52,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:52,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:52,280 INFO L87 Difference]: Start difference. First operand 9792 states and 34377 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:52,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:52,793 INFO L93 Difference]: Finished difference Result 15282 states and 54634 transitions. [2022-03-15 14:20:52,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:52,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:52,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:52,833 INFO L225 Difference]: With dead ends: 15282 [2022-03-15 14:20:52,834 INFO L226 Difference]: Without dead ends: 15132 [2022-03-15 14:20:52,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:52,834 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 352 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:52,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [352 Valid, 2515 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:52,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15132 states. [2022-03-15 14:20:53,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15132 to 9582. [2022-03-15 14:20:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9582 states, 9581 states have (on average 3.5040183696900113) internal successors, (33572), 9581 states have internal predecessors, (33572), 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) [2022-03-15 14:20:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9582 states to 9582 states and 33572 transitions. [2022-03-15 14:20:53,055 INFO L78 Accepts]: Start accepts. Automaton has 9582 states and 33572 transitions. Word has length 182 [2022-03-15 14:20:53,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:53,055 INFO L470 AbstractCegarLoop]: Abstraction has 9582 states and 33572 transitions. [2022-03-15 14:20:53,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:53,055 INFO L276 IsEmpty]: Start isEmpty. Operand 9582 states and 33572 transitions. [2022-03-15 14:20:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:53,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:53,072 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] [2022-03-15 14:20:53,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-15 14:20:53,072 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash -2088446317, now seen corresponding path program 18 times [2022-03-15 14:20:53,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:53,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967047798] [2022-03-15 14:20:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:53,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:53,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:53,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967047798] [2022-03-15 14:20:53,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967047798] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:53,576 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:53,576 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:53,576 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470240144] [2022-03-15 14:20:53,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:53,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:53,576 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:53,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:53,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:53,577 INFO L87 Difference]: Start difference. First operand 9582 states and 33572 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:54,095 INFO L93 Difference]: Finished difference Result 14888 states and 53562 transitions. [2022-03-15 14:20:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:54,095 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:54,138 INFO L225 Difference]: With dead ends: 14888 [2022-03-15 14:20:54,138 INFO L226 Difference]: Without dead ends: 14666 [2022-03-15 14:20:54,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:54,139 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:54,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [353 Valid, 2686 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14666 states. [2022-03-15 14:20:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14666 to 9518. [2022-03-15 14:20:54,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9518 states, 9517 states have (on average 3.499001786277188) internal successors, (33300), 9517 states have internal predecessors, (33300), 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) [2022-03-15 14:20:54,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9518 states to 9518 states and 33300 transitions. [2022-03-15 14:20:54,350 INFO L78 Accepts]: Start accepts. Automaton has 9518 states and 33300 transitions. Word has length 182 [2022-03-15 14:20:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:54,350 INFO L470 AbstractCegarLoop]: Abstraction has 9518 states and 33300 transitions. [2022-03-15 14:20:54,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,350 INFO L276 IsEmpty]: Start isEmpty. Operand 9518 states and 33300 transitions. [2022-03-15 14:20:54,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:54,366 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:54,367 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] [2022-03-15 14:20:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 14:20:54,367 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:54,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:54,367 INFO L85 PathProgramCache]: Analyzing trace with hash -266734529, now seen corresponding path program 19 times [2022-03-15 14:20:54,367 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:54,367 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877538274] [2022-03-15 14:20:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:54,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:54,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877538274] [2022-03-15 14:20:54,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877538274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:54,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:54,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 14:20:54,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927755994] [2022-03-15 14:20:54,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:54,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 14:20:54,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:54,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 14:20:54,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:20:54,463 INFO L87 Difference]: Start difference. First operand 9518 states and 33300 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:54,512 INFO L93 Difference]: Finished difference Result 9244 states and 32213 transitions. [2022-03-15 14:20:54,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 14:20:54,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:54,535 INFO L225 Difference]: With dead ends: 9244 [2022-03-15 14:20:54,536 INFO L226 Difference]: Without dead ends: 9244 [2022-03-15 14:20:54,536 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 [2022-03-15 14:20:54,537 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 20 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:54,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 272 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:20:54,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9244 states. [2022-03-15 14:20:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9244 to 9244. [2022-03-15 14:20:54,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9244 states, 9243 states have (on average 3.485123877528941) internal successors, (32213), 9243 states have internal predecessors, (32213), 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) [2022-03-15 14:20:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 32213 transitions. [2022-03-15 14:20:54,702 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 32213 transitions. Word has length 182 [2022-03-15 14:20:54,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:54,702 INFO L470 AbstractCegarLoop]: Abstraction has 9244 states and 32213 transitions. [2022-03-15 14:20:54,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 32213 transitions. [2022-03-15 14:20:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:54,718 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:54,718 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] [2022-03-15 14:20:54,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-15 14:20:54,719 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:54,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:54,719 INFO L85 PathProgramCache]: Analyzing trace with hash 994364243, now seen corresponding path program 20 times [2022-03-15 14:20:54,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:54,719 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642390163] [2022-03-15 14:20:54,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:54,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:54,770 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:54,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642390163] [2022-03-15 14:20:54,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642390163] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:54,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:54,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 14:20:54,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408726376] [2022-03-15 14:20:54,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:54,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 14:20:54,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:54,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 14:20:54,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 14:20:54,771 INFO L87 Difference]: Start difference. First operand 9244 states and 32213 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:54,824 INFO L93 Difference]: Finished difference Result 8392 states and 28671 transitions. [2022-03-15 14:20:54,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 14:20:54,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:54,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:54,845 INFO L225 Difference]: With dead ends: 8392 [2022-03-15 14:20:54,845 INFO L226 Difference]: Without dead ends: 8392 [2022-03-15 14:20:54,845 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 [2022-03-15 14:20:54,846 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 38 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:54,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 243 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:20:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-03-15 14:20:54,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2022-03-15 14:20:54,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 3.4168752234537005) internal successors, (28671), 8391 states have internal predecessors, (28671), 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) [2022-03-15 14:20:54,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 28671 transitions. [2022-03-15 14:20:54,994 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 28671 transitions. Word has length 182 [2022-03-15 14:20:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:54,994 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 28671 transitions. [2022-03-15 14:20:54,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 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) [2022-03-15 14:20:54,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 28671 transitions. [2022-03-15 14:20:55,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:55,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:55,009 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] [2022-03-15 14:20:55,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 14:20:55,009 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:55,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:55,009 INFO L85 PathProgramCache]: Analyzing trace with hash 418727083, now seen corresponding path program 21 times [2022-03-15 14:20:55,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:55,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264742572] [2022-03-15 14:20:55,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:55,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:55,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:55,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:55,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264742572] [2022-03-15 14:20:55,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264742572] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:55,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:55,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:55,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168607443] [2022-03-15 14:20:55,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:55,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:55,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:55,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:55,393 INFO L87 Difference]: Start difference. First operand 8392 states and 28671 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:55,783 INFO L93 Difference]: Finished difference Result 10386 states and 35499 transitions. [2022-03-15 14:20:55,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:55,783 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:55,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:55,809 INFO L225 Difference]: With dead ends: 10386 [2022-03-15 14:20:55,809 INFO L226 Difference]: Without dead ends: 10236 [2022-03-15 14:20:55,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:20:55,810 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 291 mSDsluCounter, 2358 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:55,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 2377 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:20:55,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10236 states. [2022-03-15 14:20:55,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10236 to 8560. [2022-03-15 14:20:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.4192078513845074) internal successors, (29265), 8559 states have internal predecessors, (29265), 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) [2022-03-15 14:20:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29265 transitions. [2022-03-15 14:20:55,974 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29265 transitions. Word has length 182 [2022-03-15 14:20:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:55,975 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29265 transitions. [2022-03-15 14:20:55,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:55,975 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29265 transitions. [2022-03-15 14:20:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:55,989 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:55,989 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] [2022-03-15 14:20:55,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 14:20:55,990 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:55,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:55,990 INFO L85 PathProgramCache]: Analyzing trace with hash 833510313, now seen corresponding path program 22 times [2022-03-15 14:20:55,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:55,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661444352] [2022-03-15 14:20:55,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:55,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:56,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:56,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661444352] [2022-03-15 14:20:56,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661444352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:56,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:56,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:56,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851190346] [2022-03-15 14:20:56,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:56,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:56,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:56,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:56,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:56,358 INFO L87 Difference]: Start difference. First operand 8560 states and 29265 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:56,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:56,698 INFO L93 Difference]: Finished difference Result 10404 states and 35598 transitions. [2022-03-15 14:20:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:56,699 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:56,723 INFO L225 Difference]: With dead ends: 10404 [2022-03-15 14:20:56,723 INFO L226 Difference]: Without dead ends: 10218 [2022-03-15 14:20:56,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:20:56,724 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 476 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:56,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [476 Valid, 1989 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:20:56,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2022-03-15 14:20:56,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 8536. [2022-03-15 14:20:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 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) [2022-03-15 14:20:56,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-03-15 14:20:56,886 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-03-15 14:20:56,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:56,886 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-03-15 14:20:56,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:56,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-03-15 14:20:56,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:56,901 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:56,902 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] [2022-03-15 14:20:56,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-15 14:20:56,902 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:56,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:56,902 INFO L85 PathProgramCache]: Analyzing trace with hash -700910965, now seen corresponding path program 23 times [2022-03-15 14:20:56,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:56,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475419307] [2022-03-15 14:20:56,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:56,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:57,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:57,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:57,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475419307] [2022-03-15 14:20:57,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475419307] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:57,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:57,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:57,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830282838] [2022-03-15 14:20:57,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:57,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:57,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:57,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:57,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:57,361 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:57,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:57,802 INFO L93 Difference]: Finished difference Result 10566 states and 36099 transitions. [2022-03-15 14:20:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:57,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:57,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:57,828 INFO L225 Difference]: With dead ends: 10566 [2022-03-15 14:20:57,829 INFO L226 Difference]: Without dead ends: 10416 [2022-03-15 14:20:57,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:20:57,829 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 279 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:57,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [279 Valid, 2699 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10416 states. [2022-03-15 14:20:57,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10416 to 8566. [2022-03-15 14:20:57,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8566 states, 8565 states have (on average 3.422416812609457) internal successors, (29313), 8565 states have internal predecessors, (29313), 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) [2022-03-15 14:20:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8566 states to 8566 states and 29313 transitions. [2022-03-15 14:20:57,999 INFO L78 Accepts]: Start accepts. Automaton has 8566 states and 29313 transitions. Word has length 182 [2022-03-15 14:20:58,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:58,000 INFO L470 AbstractCegarLoop]: Abstraction has 8566 states and 29313 transitions. [2022-03-15 14:20:58,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:58,000 INFO L276 IsEmpty]: Start isEmpty. Operand 8566 states and 29313 transitions. [2022-03-15 14:20:58,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:58,015 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:58,015 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] [2022-03-15 14:20:58,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 14:20:58,015 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:58,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:58,016 INFO L85 PathProgramCache]: Analyzing trace with hash -301280951, now seen corresponding path program 24 times [2022-03-15 14:20:58,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:58,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022641886] [2022-03-15 14:20:58,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:58,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:58,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:58,534 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:58,534 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022641886] [2022-03-15 14:20:58,535 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022641886] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:58,535 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:58,535 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:58,535 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797507721] [2022-03-15 14:20:58,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:58,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:58,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:58,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:58,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:58,537 INFO L87 Difference]: Start difference. First operand 8566 states and 29313 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:58,945 INFO L93 Difference]: Finished difference Result 11160 states and 38145 transitions. [2022-03-15 14:20:58,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:20:58,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:20:58,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:58,972 INFO L225 Difference]: With dead ends: 11160 [2022-03-15 14:20:58,972 INFO L226 Difference]: Without dead ends: 11010 [2022-03-15 14:20:58,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:20:58,973 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 514 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:58,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [514 Valid, 2045 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:20:58,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-15 14:20:59,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8536. [2022-03-15 14:20:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.4192149970708847) internal successors, (29183), 8535 states have internal predecessors, (29183), 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) [2022-03-15 14:20:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29183 transitions. [2022-03-15 14:20:59,144 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29183 transitions. Word has length 182 [2022-03-15 14:20:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:59,144 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29183 transitions. [2022-03-15 14:20:59,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:20:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29183 transitions. [2022-03-15 14:20:59,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:20:59,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:59,160 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] [2022-03-15 14:20:59,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 14:20:59,160 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:20:59,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:59,160 INFO L85 PathProgramCache]: Analyzing trace with hash -951729653, now seen corresponding path program 25 times [2022-03-15 14:20:59,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:59,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299169735] [2022-03-15 14:20:59,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:59,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:59,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:20:59,597 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:59,597 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299169735] [2022-03-15 14:20:59,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299169735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:20:59,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:20:59,597 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:20:59,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560615341] [2022-03-15 14:20:59,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:20:59,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:20:59,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:59,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:20:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:20:59,598 INFO L87 Difference]: Start difference. First operand 8536 states and 29183 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:00,004 INFO L93 Difference]: Finished difference Result 10584 states and 36285 transitions. [2022-03-15 14:21:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:00,030 INFO L225 Difference]: With dead ends: 10584 [2022-03-15 14:21:00,030 INFO L226 Difference]: Without dead ends: 10398 [2022-03-15 14:21:00,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:00,031 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 281 mSDsluCounter, 2524 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:00,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 2495 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2022-03-15 14:21:00,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 8552. [2022-03-15 14:21:00,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4203017190971816) internal successors, (29247), 8551 states have internal predecessors, (29247), 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) [2022-03-15 14:21:00,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29247 transitions. [2022-03-15 14:21:00,198 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29247 transitions. Word has length 182 [2022-03-15 14:21:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:00,199 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29247 transitions. [2022-03-15 14:21:00,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:00,199 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29247 transitions. [2022-03-15 14:21:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:00,213 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:00,214 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] [2022-03-15 14:21:00,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-15 14:21:00,214 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -114986613, now seen corresponding path program 26 times [2022-03-15 14:21:00,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:00,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800487472] [2022-03-15 14:21:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:00,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:00,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:00,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800487472] [2022-03-15 14:21:00,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800487472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:00,670 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:00,670 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:00,670 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496839700] [2022-03-15 14:21:00,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:00,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:00,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:00,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:00,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:00,671 INFO L87 Difference]: Start difference. First operand 8552 states and 29247 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:01,071 INFO L93 Difference]: Finished difference Result 11160 states and 38220 transitions. [2022-03-15 14:21:01,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:01,071 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:01,100 INFO L225 Difference]: With dead ends: 11160 [2022-03-15 14:21:01,100 INFO L226 Difference]: Without dead ends: 11010 [2022-03-15 14:21:01,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:01,101 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 469 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:01,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 2313 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11010 states. [2022-03-15 14:21:01,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11010 to 8528. [2022-03-15 14:21:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 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) [2022-03-15 14:21:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-03-15 14:21:01,272 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-03-15 14:21:01,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:01,273 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-03-15 14:21:01,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:01,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-03-15 14:21:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:01,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:01,288 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] [2022-03-15 14:21:01,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 14:21:01,288 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:01,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash -922837013, now seen corresponding path program 27 times [2022-03-15 14:21:01,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:01,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133090252] [2022-03-15 14:21:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:01,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:01,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:01,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:01,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:01,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133090252] [2022-03-15 14:21:01,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133090252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:01,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:01,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:01,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985686923] [2022-03-15 14:21:01,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:01,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:01,804 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:01,804 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:02,242 INFO L93 Difference]: Finished difference Result 10698 states and 36474 transitions. [2022-03-15 14:21:02,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:02,242 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:02,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:02,268 INFO L225 Difference]: With dead ends: 10698 [2022-03-15 14:21:02,268 INFO L226 Difference]: Without dead ends: 10548 [2022-03-15 14:21:02,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:02,269 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 444 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:02,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [444 Valid, 2424 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10548 states. [2022-03-15 14:21:02,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10548 to 8588. [2022-03-15 14:21:02,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8588 states, 8587 states have (on average 3.420868755094911) internal successors, (29375), 8587 states have internal predecessors, (29375), 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) [2022-03-15 14:21:02,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8588 states to 8588 states and 29375 transitions. [2022-03-15 14:21:02,445 INFO L78 Accepts]: Start accepts. Automaton has 8588 states and 29375 transitions. Word has length 182 [2022-03-15 14:21:02,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:02,445 INFO L470 AbstractCegarLoop]: Abstraction has 8588 states and 29375 transitions. [2022-03-15 14:21:02,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:02,445 INFO L276 IsEmpty]: Start isEmpty. Operand 8588 states and 29375 transitions. [2022-03-15 14:21:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:02,460 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:02,460 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] [2022-03-15 14:21:02,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 14:21:02,461 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:02,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:02,461 INFO L85 PathProgramCache]: Analyzing trace with hash -523206999, now seen corresponding path program 28 times [2022-03-15 14:21:02,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:02,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456627936] [2022-03-15 14:21:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:02,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:03,001 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:03,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456627936] [2022-03-15 14:21:03,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456627936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:03,001 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:03,001 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:03,001 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279835448] [2022-03-15 14:21:03,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:03,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:03,002 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:03,002 INFO L87 Difference]: Start difference. First operand 8588 states and 29375 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:03,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:03,456 INFO L93 Difference]: Finished difference Result 11382 states and 38790 transitions. [2022-03-15 14:21:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:03,456 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:03,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:03,484 INFO L225 Difference]: With dead ends: 11382 [2022-03-15 14:21:03,484 INFO L226 Difference]: Without dead ends: 11232 [2022-03-15 14:21:03,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:03,485 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 446 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:03,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 2426 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11232 states. [2022-03-15 14:21:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11232 to 8558. [2022-03-15 14:21:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8557 states have (on average 3.4176697440691832) internal successors, (29245), 8557 states have internal predecessors, (29245), 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) [2022-03-15 14:21:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 29245 transitions. [2022-03-15 14:21:03,667 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 29245 transitions. Word has length 182 [2022-03-15 14:21:03,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:03,667 INFO L470 AbstractCegarLoop]: Abstraction has 8558 states and 29245 transitions. [2022-03-15 14:21:03,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:03,667 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 29245 transitions. [2022-03-15 14:21:03,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:03,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:03,683 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] [2022-03-15 14:21:03,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 14:21:03,683 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:03,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:03,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2124387601, now seen corresponding path program 29 times [2022-03-15 14:21:03,683 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:03,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430499636] [2022-03-15 14:21:03,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:03,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:04,153 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:04,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430499636] [2022-03-15 14:21:04,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430499636] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:04,153 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:04,153 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:04,153 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021247022] [2022-03-15 14:21:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:04,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:04,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:04,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:04,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:04,154 INFO L87 Difference]: Start difference. First operand 8558 states and 29245 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:04,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:04,580 INFO L93 Difference]: Finished difference Result 11484 states and 39204 transitions. [2022-03-15 14:21:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:04,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:04,608 INFO L225 Difference]: With dead ends: 11484 [2022-03-15 14:21:04,608 INFO L226 Difference]: Without dead ends: 11334 [2022-03-15 14:21:04,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:04,608 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 457 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:04,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2216 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:04,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11334 states. [2022-03-15 14:21:04,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11334 to 8528. [2022-03-15 14:21:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4179664594816463) internal successors, (29145), 8527 states have internal predecessors, (29145), 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) [2022-03-15 14:21:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29145 transitions. [2022-03-15 14:21:04,786 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29145 transitions. Word has length 182 [2022-03-15 14:21:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:04,786 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29145 transitions. [2022-03-15 14:21:04,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29145 transitions. [2022-03-15 14:21:04,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:04,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:04,801 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] [2022-03-15 14:21:04,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 14:21:04,801 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:04,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:04,801 INFO L85 PathProgramCache]: Analyzing trace with hash 306501481, now seen corresponding path program 30 times [2022-03-15 14:21:04,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:04,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464139544] [2022-03-15 14:21:04,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:04,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:05,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:05,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:05,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464139544] [2022-03-15 14:21:05,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464139544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:05,178 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:05,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:05,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850830254] [2022-03-15 14:21:05,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:05,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:05,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:05,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:05,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:05,179 INFO L87 Difference]: Start difference. First operand 8528 states and 29145 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:05,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:05,565 INFO L93 Difference]: Finished difference Result 10608 states and 36399 transitions. [2022-03-15 14:21:05,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:05,565 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:05,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:05,589 INFO L225 Difference]: With dead ends: 10608 [2022-03-15 14:21:05,589 INFO L226 Difference]: Without dead ends: 10422 [2022-03-15 14:21:05,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:05,590 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 318 mSDsluCounter, 2364 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:05,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 2365 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:05,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10422 states. [2022-03-15 14:21:05,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10422 to 8560. [2022-03-15 14:21:05,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 8559 states have (on average 3.419675195700432) internal successors, (29269), 8559 states have internal predecessors, (29269), 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) [2022-03-15 14:21:05,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 29269 transitions. [2022-03-15 14:21:05,749 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 29269 transitions. Word has length 182 [2022-03-15 14:21:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:05,749 INFO L470 AbstractCegarLoop]: Abstraction has 8560 states and 29269 transitions. [2022-03-15 14:21:05,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 29269 transitions. [2022-03-15 14:21:05,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:05,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:05,763 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] [2022-03-15 14:21:05,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 14:21:05,763 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:05,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:05,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1143244521, now seen corresponding path program 31 times [2022-03-15 14:21:05,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:05,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862919680] [2022-03-15 14:21:05,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:06,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:06,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:06,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862919680] [2022-03-15 14:21:06,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862919680] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:06,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:06,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:06,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894912678] [2022-03-15 14:21:06,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:06,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:06,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:06,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:06,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:06,243 INFO L87 Difference]: Start difference. First operand 8560 states and 29269 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:06,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:06,701 INFO L93 Difference]: Finished difference Result 11256 states and 38580 transitions. [2022-03-15 14:21:06,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:06,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:06,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:06,727 INFO L225 Difference]: With dead ends: 11256 [2022-03-15 14:21:06,727 INFO L226 Difference]: Without dead ends: 11106 [2022-03-15 14:21:06,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=379, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:06,728 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 358 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:06,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 2787 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:06,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11106 states. [2022-03-15 14:21:06,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11106 to 8544. [2022-03-15 14:21:06,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8544 states, 8543 states have (on average 3.418588317921105) internal successors, (29205), 8543 states have internal predecessors, (29205), 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) [2022-03-15 14:21:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8544 states to 8544 states and 29205 transitions. [2022-03-15 14:21:06,889 INFO L78 Accepts]: Start accepts. Automaton has 8544 states and 29205 transitions. Word has length 182 [2022-03-15 14:21:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:06,889 INFO L470 AbstractCegarLoop]: Abstraction has 8544 states and 29205 transitions. [2022-03-15 14:21:06,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:06,889 INFO L276 IsEmpty]: Start isEmpty. Operand 8544 states and 29205 transitions. [2022-03-15 14:21:06,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:06,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:06,904 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] [2022-03-15 14:21:06,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 14:21:06,904 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:06,905 INFO L85 PathProgramCache]: Analyzing trace with hash -690422513, now seen corresponding path program 32 times [2022-03-15 14:21:06,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:06,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108929011] [2022-03-15 14:21:06,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:06,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:07,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:07,429 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:07,429 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108929011] [2022-03-15 14:21:07,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108929011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:07,429 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:07,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:07,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786320432] [2022-03-15 14:21:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:07,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:07,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:07,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:07,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:07,430 INFO L87 Difference]: Start difference. First operand 8544 states and 29205 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:07,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:07,863 INFO L93 Difference]: Finished difference Result 11358 states and 38919 transitions. [2022-03-15 14:21:07,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:07,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:07,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:07,889 INFO L225 Difference]: With dead ends: 11358 [2022-03-15 14:21:07,889 INFO L226 Difference]: Without dead ends: 11208 [2022-03-15 14:21:07,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:07,890 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 357 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:07,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2490 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:07,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11208 states. [2022-03-15 14:21:08,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11208 to 8520. [2022-03-15 14:21:08,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 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) [2022-03-15 14:21:08,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-03-15 14:21:08,055 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-03-15 14:21:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:08,055 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-03-15 14:21:08,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-03-15 14:21:08,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:08,070 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:08,070 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] [2022-03-15 14:21:08,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 14:21:08,070 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:08,071 INFO L85 PathProgramCache]: Analyzing trace with hash 501633739, now seen corresponding path program 33 times [2022-03-15 14:21:08,071 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:08,071 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122188187] [2022-03-15 14:21:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:08,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:08,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:08,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122188187] [2022-03-15 14:21:08,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122188187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:08,479 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:08,479 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:08,479 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809752781] [2022-03-15 14:21:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:08,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:08,480 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:08,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:08,480 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:08,858 INFO L93 Difference]: Finished difference Result 10690 states and 36444 transitions. [2022-03-15 14:21:08,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:08,883 INFO L225 Difference]: With dead ends: 10690 [2022-03-15 14:21:08,884 INFO L226 Difference]: Without dead ends: 10540 [2022-03-15 14:21:08,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:08,884 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 407 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:08,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 2354 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10540 states. [2022-03-15 14:21:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10540 to 8820. [2022-03-15 14:21:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 3.409683637600635) internal successors, (30070), 8819 states have internal predecessors, (30070), 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) [2022-03-15 14:21:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 30070 transitions. [2022-03-15 14:21:09,048 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 30070 transitions. Word has length 182 [2022-03-15 14:21:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:09,048 INFO L470 AbstractCegarLoop]: Abstraction has 8820 states and 30070 transitions. [2022-03-15 14:21:09,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:09,048 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 30070 transitions. [2022-03-15 14:21:09,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:09,062 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:09,062 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] [2022-03-15 14:21:09,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 14:21:09,063 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:09,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:09,063 INFO L85 PathProgramCache]: Analyzing trace with hash 901263753, now seen corresponding path program 34 times [2022-03-15 14:21:09,063 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:09,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26607797] [2022-03-15 14:21:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:09,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:09,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:09,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26607797] [2022-03-15 14:21:09,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26607797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:09,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:09,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:09,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382078964] [2022-03-15 14:21:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:09,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:09,494 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:09,494 INFO L87 Difference]: Start difference. First operand 8820 states and 30070 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:09,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:09,953 INFO L93 Difference]: Finished difference Result 11550 states and 39376 transitions. [2022-03-15 14:21:09,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:09,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:09,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:09,980 INFO L225 Difference]: With dead ends: 11550 [2022-03-15 14:21:09,981 INFO L226 Difference]: Without dead ends: 11400 [2022-03-15 14:21:09,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:09,981 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 437 mSDsluCounter, 2621 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:09,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2583 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:09,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11400 states. [2022-03-15 14:21:10,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11400 to 8790. [2022-03-15 14:21:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 8789 states have (on average 3.406530890886335) internal successors, (29940), 8789 states have internal predecessors, (29940), 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) [2022-03-15 14:21:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 29940 transitions. [2022-03-15 14:21:10,149 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 29940 transitions. Word has length 182 [2022-03-15 14:21:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:10,149 INFO L470 AbstractCegarLoop]: Abstraction has 8790 states and 29940 transitions. [2022-03-15 14:21:10,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 29940 transitions. [2022-03-15 14:21:10,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:10,164 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:10,164 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] [2022-03-15 14:21:10,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-15 14:21:10,164 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash -746108943, now seen corresponding path program 35 times [2022-03-15 14:21:10,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:10,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176871566] [2022-03-15 14:21:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:10,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:10,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:10,628 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176871566] [2022-03-15 14:21:10,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176871566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:10,628 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:10,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:10,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101325843] [2022-03-15 14:21:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:10,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:10,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:10,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:10,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:10,629 INFO L87 Difference]: Start difference. First operand 8790 states and 29940 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:11,084 INFO L93 Difference]: Finished difference Result 11685 states and 39866 transitions. [2022-03-15 14:21:11,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:11,084 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:11,111 INFO L225 Difference]: With dead ends: 11685 [2022-03-15 14:21:11,111 INFO L226 Difference]: Without dead ends: 11535 [2022-03-15 14:21:11,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:11,112 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 468 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:11,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [468 Valid, 2252 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:11,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-03-15 14:21:11,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 8760. [2022-03-15 14:21:11,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8760 states, 8759 states have (on average 3.406781596072611) internal successors, (29840), 8759 states have internal predecessors, (29840), 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) [2022-03-15 14:21:11,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8760 states to 8760 states and 29840 transitions. [2022-03-15 14:21:11,278 INFO L78 Accepts]: Start accepts. Automaton has 8760 states and 29840 transitions. Word has length 182 [2022-03-15 14:21:11,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:11,278 INFO L470 AbstractCegarLoop]: Abstraction has 8760 states and 29840 transitions. [2022-03-15 14:21:11,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 8760 states and 29840 transitions. [2022-03-15 14:21:11,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:11,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:11,293 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] [2022-03-15 14:21:11,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-15 14:21:11,293 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:11,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:11,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1833174183, now seen corresponding path program 36 times [2022-03-15 14:21:11,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:11,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550382758] [2022-03-15 14:21:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:11,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:11,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550382758] [2022-03-15 14:21:11,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550382758] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:11,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:11,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:11,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335639533] [2022-03-15 14:21:11,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:11,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:11,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:11,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:11,834 INFO L87 Difference]: Start difference. First operand 8760 states and 29840 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:12,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:12,287 INFO L93 Difference]: Finished difference Result 11454 states and 39104 transitions. [2022-03-15 14:21:12,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:12,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:12,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:12,314 INFO L225 Difference]: With dead ends: 11454 [2022-03-15 14:21:12,314 INFO L226 Difference]: Without dead ends: 11304 [2022-03-15 14:21:12,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=387, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:12,315 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 364 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:12,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [364 Valid, 2555 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11304 states. [2022-03-15 14:21:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11304 to 8520. [2022-03-15 14:21:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.417654654302148) internal successors, (29115), 8519 states have internal predecessors, (29115), 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) [2022-03-15 14:21:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29115 transitions. [2022-03-15 14:21:12,481 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29115 transitions. Word has length 182 [2022-03-15 14:21:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:12,481 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29115 transitions. [2022-03-15 14:21:12,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:12,481 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29115 transitions. [2022-03-15 14:21:12,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:12,496 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:12,496 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] [2022-03-15 14:21:12,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-15 14:21:12,496 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:12,496 INFO L85 PathProgramCache]: Analyzing trace with hash 371204619, now seen corresponding path program 37 times [2022-03-15 14:21:12,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:12,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361848552] [2022-03-15 14:21:12,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:12,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:12,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:12,886 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:12,886 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361848552] [2022-03-15 14:21:12,886 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361848552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:12,886 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:12,886 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:12,886 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004585531] [2022-03-15 14:21:12,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:12,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:12,886 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:12,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:12,887 INFO L87 Difference]: Start difference. First operand 8520 states and 29115 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:13,261 INFO L93 Difference]: Finished difference Result 10600 states and 36369 transitions. [2022-03-15 14:21:13,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:13,262 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:13,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:13,286 INFO L225 Difference]: With dead ends: 10600 [2022-03-15 14:21:13,286 INFO L226 Difference]: Without dead ends: 10414 [2022-03-15 14:21:13,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:13,287 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 375 mSDsluCounter, 2132 mSDsCounter, 0 mSdLazyCounter, 610 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:13,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 2154 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 610 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10414 states. [2022-03-15 14:21:13,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10414 to 8600. [2022-03-15 14:21:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8600 states, 8599 states have (on average 3.421211768810327) internal successors, (29419), 8599 states have internal predecessors, (29419), 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) [2022-03-15 14:21:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8600 states to 8600 states and 29419 transitions. [2022-03-15 14:21:13,449 INFO L78 Accepts]: Start accepts. Automaton has 8600 states and 29419 transitions. Word has length 182 [2022-03-15 14:21:13,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:13,449 INFO L470 AbstractCegarLoop]: Abstraction has 8600 states and 29419 transitions. [2022-03-15 14:21:13,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:13,450 INFO L276 IsEmpty]: Start isEmpty. Operand 8600 states and 29419 transitions. [2022-03-15 14:21:13,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:13,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:13,464 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] [2022-03-15 14:21:13,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-15 14:21:13,464 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:13,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:13,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1207947659, now seen corresponding path program 38 times [2022-03-15 14:21:13,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:13,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068973260] [2022-03-15 14:21:13,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:13,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:13,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:13,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:13,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068973260] [2022-03-15 14:21:13,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068973260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:13,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:13,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:13,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351604959] [2022-03-15 14:21:13,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:13,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:13,953 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:13,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:13,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:13,954 INFO L87 Difference]: Start difference. First operand 8600 states and 29419 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:14,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:14,419 INFO L93 Difference]: Finished difference Result 11396 states and 39060 transitions. [2022-03-15 14:21:14,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:14,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:14,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:14,446 INFO L225 Difference]: With dead ends: 11396 [2022-03-15 14:21:14,446 INFO L226 Difference]: Without dead ends: 11246 [2022-03-15 14:21:14,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:14,447 INFO L933 BasicCegarLoop]: 248 mSDtfsCounter, 482 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:14,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [482 Valid, 2410 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:14,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11246 states. [2022-03-15 14:21:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11246 to 8584. [2022-03-15 14:21:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 8583 states have (on average 3.4201328206920656) internal successors, (29355), 8583 states have internal predecessors, (29355), 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) [2022-03-15 14:21:14,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 29355 transitions. [2022-03-15 14:21:14,616 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 29355 transitions. Word has length 182 [2022-03-15 14:21:14,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:14,616 INFO L470 AbstractCegarLoop]: Abstraction has 8584 states and 29355 transitions. [2022-03-15 14:21:14,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:14,616 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 29355 transitions. [2022-03-15 14:21:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:14,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:14,631 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] [2022-03-15 14:21:14,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-15 14:21:14,631 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:14,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:14,632 INFO L85 PathProgramCache]: Analyzing trace with hash -625719375, now seen corresponding path program 39 times [2022-03-15 14:21:14,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:14,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639046185] [2022-03-15 14:21:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:14,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:15,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:15,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639046185] [2022-03-15 14:21:15,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639046185] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:15,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:15,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:15,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364386790] [2022-03-15 14:21:15,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:15,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:15,117 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:15,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:15,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:15,118 INFO L87 Difference]: Start difference. First operand 8584 states and 29355 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:15,583 INFO L93 Difference]: Finished difference Result 11545 states and 39541 transitions. [2022-03-15 14:21:15,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:15,612 INFO L225 Difference]: With dead ends: 11545 [2022-03-15 14:21:15,612 INFO L226 Difference]: Without dead ends: 11395 [2022-03-15 14:21:15,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:15,613 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 488 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 2322 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:15,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [488 Valid, 2322 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:15,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2022-03-15 14:21:15,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 8568. [2022-03-15 14:21:15,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.4195167503209993) internal successors, (29295), 8567 states have internal predecessors, (29295), 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) [2022-03-15 14:21:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29295 transitions. [2022-03-15 14:21:15,788 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29295 transitions. Word has length 182 [2022-03-15 14:21:15,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:15,788 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29295 transitions. [2022-03-15 14:21:15,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29295 transitions. [2022-03-15 14:21:15,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:15,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:15,803 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] [2022-03-15 14:21:15,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-15 14:21:15,804 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash 473406569, now seen corresponding path program 40 times [2022-03-15 14:21:15,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:15,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297467550] [2022-03-15 14:21:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:16,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:16,335 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:16,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297467550] [2022-03-15 14:21:16,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297467550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:16,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:16,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:16,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176542625] [2022-03-15 14:21:16,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:16,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:16,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:16,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:16,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:16,337 INFO L87 Difference]: Start difference. First operand 8568 states and 29295 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:16,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:16,826 INFO L93 Difference]: Finished difference Result 11322 states and 38784 transitions. [2022-03-15 14:21:16,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:16,826 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:16,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:16,854 INFO L225 Difference]: With dead ends: 11322 [2022-03-15 14:21:16,854 INFO L226 Difference]: Without dead ends: 11172 [2022-03-15 14:21:16,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:16,855 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 384 mSDsluCounter, 2531 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:16,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 2464 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11172 states. [2022-03-15 14:21:16,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11172 to 8424. [2022-03-15 14:21:17,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8424 states, 8423 states have (on average 3.4190905853021487) internal successors, (28799), 8423 states have internal predecessors, (28799), 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) [2022-03-15 14:21:17,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 28799 transitions. [2022-03-15 14:21:17,029 INFO L78 Accepts]: Start accepts. Automaton has 8424 states and 28799 transitions. Word has length 182 [2022-03-15 14:21:17,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:17,029 INFO L470 AbstractCegarLoop]: Abstraction has 8424 states and 28799 transitions. [2022-03-15 14:21:17,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:17,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8424 states and 28799 transitions. [2022-03-15 14:21:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:17,044 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:17,044 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] [2022-03-15 14:21:17,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-15 14:21:17,045 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1916046689, now seen corresponding path program 41 times [2022-03-15 14:21:17,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:17,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656259203] [2022-03-15 14:21:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:17,412 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:17,412 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656259203] [2022-03-15 14:21:17,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656259203] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:17,412 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:17,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:17,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919016002] [2022-03-15 14:21:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:17,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:17,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:17,413 INFO L87 Difference]: Start difference. First operand 8424 states and 28799 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:17,738 INFO L93 Difference]: Finished difference Result 10282 states and 35153 transitions. [2022-03-15 14:21:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:17,761 INFO L225 Difference]: With dead ends: 10282 [2022-03-15 14:21:17,761 INFO L226 Difference]: Without dead ends: 10132 [2022-03-15 14:21:17,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:17,762 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 505 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1919 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:17,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [505 Valid, 1919 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:17,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-03-15 14:21:17,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 8528. [2022-03-15 14:21:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.420781048434385) internal successors, (29169), 8527 states have internal predecessors, (29169), 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) [2022-03-15 14:21:17,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29169 transitions. [2022-03-15 14:21:17,919 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29169 transitions. Word has length 182 [2022-03-15 14:21:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:17,919 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29169 transitions. [2022-03-15 14:21:17,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:17,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29169 transitions. [2022-03-15 14:21:17,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:17,934 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:17,934 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] [2022-03-15 14:21:17,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-15 14:21:17,934 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:17,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:17,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1501263459, now seen corresponding path program 42 times [2022-03-15 14:21:17,935 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:17,935 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934550081] [2022-03-15 14:21:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:18,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:18,312 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:18,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934550081] [2022-03-15 14:21:18,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934550081] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:18,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:18,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:18,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167302586] [2022-03-15 14:21:18,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:18,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:18,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:18,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:18,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:18,313 INFO L87 Difference]: Start difference. First operand 8528 states and 29169 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:18,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:18,641 INFO L93 Difference]: Finished difference Result 10300 states and 35252 transitions. [2022-03-15 14:21:18,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:18,641 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:18,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:18,664 INFO L225 Difference]: With dead ends: 10300 [2022-03-15 14:21:18,664 INFO L226 Difference]: Without dead ends: 10114 [2022-03-15 14:21:18,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:18,665 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 451 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:18,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 1869 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:18,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2022-03-15 14:21:18,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 8504. [2022-03-15 14:21:18,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 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) [2022-03-15 14:21:18,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-03-15 14:21:18,826 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-03-15 14:21:18,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:18,826 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-03-15 14:21:18,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:18,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-03-15 14:21:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:18,841 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:18,841 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] [2022-03-15 14:21:18,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-15 14:21:18,842 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:18,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1259282559, now seen corresponding path program 43 times [2022-03-15 14:21:18,842 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:18,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669073125] [2022-03-15 14:21:18,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:19,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:19,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669073125] [2022-03-15 14:21:19,206 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669073125] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:19,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:19,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:19,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158588107] [2022-03-15 14:21:19,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:19,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:19,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:19,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:19,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:19,208 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:19,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:19,586 INFO L93 Difference]: Finished difference Result 10462 states and 35753 transitions. [2022-03-15 14:21:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:19,587 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:19,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:19,611 INFO L225 Difference]: With dead ends: 10462 [2022-03-15 14:21:19,611 INFO L226 Difference]: Without dead ends: 10312 [2022-03-15 14:21:19,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:19,612 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 331 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:19,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [331 Valid, 2247 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10312 states. [2022-03-15 14:21:19,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10312 to 8534. [2022-03-15 14:21:19,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8534 states, 8533 states have (on average 3.4240009375366225) internal successors, (29217), 8533 states have internal predecessors, (29217), 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) [2022-03-15 14:21:19,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8534 states to 8534 states and 29217 transitions. [2022-03-15 14:21:19,779 INFO L78 Accepts]: Start accepts. Automaton has 8534 states and 29217 transitions. Word has length 182 [2022-03-15 14:21:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:19,779 INFO L470 AbstractCegarLoop]: Abstraction has 8534 states and 29217 transitions. [2022-03-15 14:21:19,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 8534 states and 29217 transitions. [2022-03-15 14:21:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:19,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:19,794 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] [2022-03-15 14:21:19,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-15 14:21:19,794 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:19,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:19,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1658912573, now seen corresponding path program 44 times [2022-03-15 14:21:19,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:19,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766223283] [2022-03-15 14:21:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:19,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:20,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:20,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766223283] [2022-03-15 14:21:20,195 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766223283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:20,195 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:20,195 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:20,195 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444339949] [2022-03-15 14:21:20,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:20,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:20,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:20,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:20,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:20,196 INFO L87 Difference]: Start difference. First operand 8534 states and 29217 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:20,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:20,557 INFO L93 Difference]: Finished difference Result 11056 states and 37799 transitions. [2022-03-15 14:21:20,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:20,557 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:20,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:20,583 INFO L225 Difference]: With dead ends: 11056 [2022-03-15 14:21:20,583 INFO L226 Difference]: Without dead ends: 10906 [2022-03-15 14:21:20,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:20,583 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 370 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:20,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [370 Valid, 2135 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-03-15 14:21:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8504. [2022-03-15 14:21:20,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8504 states, 8503 states have (on average 3.4207926614136186) internal successors, (29087), 8503 states have internal predecessors, (29087), 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) [2022-03-15 14:21:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8504 states to 8504 states and 29087 transitions. [2022-03-15 14:21:20,777 INFO L78 Accepts]: Start accepts. Automaton has 8504 states and 29087 transitions. Word has length 182 [2022-03-15 14:21:20,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:20,777 INFO L470 AbstractCegarLoop]: Abstraction has 8504 states and 29087 transitions. [2022-03-15 14:21:20,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 8504 states and 29087 transitions. [2022-03-15 14:21:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:20,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:20,792 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] [2022-03-15 14:21:20,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-15 14:21:20,792 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1008463871, now seen corresponding path program 45 times [2022-03-15 14:21:20,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:20,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139744951] [2022-03-15 14:21:20,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:21,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:21,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139744951] [2022-03-15 14:21:21,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139744951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:21,141 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:21,141 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:21,142 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078778089] [2022-03-15 14:21:21,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:21,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:21,142 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:21,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:21,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:21,142 INFO L87 Difference]: Start difference. First operand 8504 states and 29087 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:21,475 INFO L93 Difference]: Finished difference Result 10480 states and 35939 transitions. [2022-03-15 14:21:21,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:21,475 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:21,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:21,499 INFO L225 Difference]: With dead ends: 10480 [2022-03-15 14:21:21,500 INFO L226 Difference]: Without dead ends: 10294 [2022-03-15 14:21:21,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:21,500 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 363 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1866 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:21,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1866 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:21,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10294 states. [2022-03-15 14:21:21,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10294 to 8520. [2022-03-15 14:21:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8520 states, 8519 states have (on average 3.4218805024063856) internal successors, (29151), 8519 states have internal predecessors, (29151), 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) [2022-03-15 14:21:21,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8520 states to 8520 states and 29151 transitions. [2022-03-15 14:21:21,659 INFO L78 Accepts]: Start accepts. Automaton has 8520 states and 29151 transitions. Word has length 182 [2022-03-15 14:21:21,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:21,660 INFO L470 AbstractCegarLoop]: Abstraction has 8520 states and 29151 transitions. [2022-03-15 14:21:21,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:21,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8520 states and 29151 transitions. [2022-03-15 14:21:21,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:21,675 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:21,675 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] [2022-03-15 14:21:21,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-15 14:21:21,675 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:21,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:21,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1845206911, now seen corresponding path program 46 times [2022-03-15 14:21:21,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:21,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106374188] [2022-03-15 14:21:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:21,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:22,076 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:22,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106374188] [2022-03-15 14:21:22,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106374188] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:22,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:22,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:22,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573134099] [2022-03-15 14:21:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:22,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:22,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:22,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:22,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:22,078 INFO L87 Difference]: Start difference. First operand 8520 states and 29151 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:22,470 INFO L93 Difference]: Finished difference Result 11056 states and 37874 transitions. [2022-03-15 14:21:22,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:22,496 INFO L225 Difference]: With dead ends: 11056 [2022-03-15 14:21:22,496 INFO L226 Difference]: Without dead ends: 10906 [2022-03-15 14:21:22,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:22,497 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 432 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:22,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 2271 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10906 states. [2022-03-15 14:21:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10906 to 8496. [2022-03-15 14:21:22,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 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) [2022-03-15 14:21:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-03-15 14:21:22,669 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-03-15 14:21:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:22,669 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-03-15 14:21:22,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-03-15 14:21:22,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:22,684 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:22,684 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] [2022-03-15 14:21:22,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-15 14:21:22,684 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:22,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1037356511, now seen corresponding path program 47 times [2022-03-15 14:21:22,685 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:22,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617266936] [2022-03-15 14:21:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:23,093 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:23,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617266936] [2022-03-15 14:21:23,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617266936] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:23,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:23,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:23,094 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452899221] [2022-03-15 14:21:23,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:23,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:23,094 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:23,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:23,095 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:23,455 INFO L93 Difference]: Finished difference Result 10594 states and 36128 transitions. [2022-03-15 14:21:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:23,455 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:23,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:23,479 INFO L225 Difference]: With dead ends: 10594 [2022-03-15 14:21:23,480 INFO L226 Difference]: Without dead ends: 10444 [2022-03-15 14:21:23,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:23,480 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 470 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:23,480 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 1992 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10444 states. [2022-03-15 14:21:23,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10444 to 8556. [2022-03-15 14:21:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8556 states, 8555 states have (on average 3.4224430157802455) internal successors, (29279), 8555 states have internal predecessors, (29279), 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) [2022-03-15 14:21:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8556 states to 8556 states and 29279 transitions. [2022-03-15 14:21:23,641 INFO L78 Accepts]: Start accepts. Automaton has 8556 states and 29279 transitions. Word has length 182 [2022-03-15 14:21:23,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:23,641 INFO L470 AbstractCegarLoop]: Abstraction has 8556 states and 29279 transitions. [2022-03-15 14:21:23,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 8556 states and 29279 transitions. [2022-03-15 14:21:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:23,656 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:23,656 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] [2022-03-15 14:21:23,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-15 14:21:23,656 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:23,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1436986525, now seen corresponding path program 48 times [2022-03-15 14:21:23,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:23,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223528828] [2022-03-15 14:21:23,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:23,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:24,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:24,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:24,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223528828] [2022-03-15 14:21:24,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223528828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:24,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:24,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:24,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735979531] [2022-03-15 14:21:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:24,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:24,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:24,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:24,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:24,111 INFO L87 Difference]: Start difference. First operand 8556 states and 29279 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:24,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:24,489 INFO L93 Difference]: Finished difference Result 11278 states and 38444 transitions. [2022-03-15 14:21:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:24,489 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:24,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:24,515 INFO L225 Difference]: With dead ends: 11278 [2022-03-15 14:21:24,515 INFO L226 Difference]: Without dead ends: 11128 [2022-03-15 14:21:24,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:24,516 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 506 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:24,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [506 Valid, 1855 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:24,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11128 states. [2022-03-15 14:21:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11128 to 8526. [2022-03-15 14:21:24,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8526 states, 8525 states have (on average 3.4192375366568917) internal successors, (29149), 8525 states have internal predecessors, (29149), 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) [2022-03-15 14:21:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8526 states to 8526 states and 29149 transitions. [2022-03-15 14:21:24,753 INFO L78 Accepts]: Start accepts. Automaton has 8526 states and 29149 transitions. Word has length 182 [2022-03-15 14:21:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:24,753 INFO L470 AbstractCegarLoop]: Abstraction has 8526 states and 29149 transitions. [2022-03-15 14:21:24,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:24,753 INFO L276 IsEmpty]: Start isEmpty. Operand 8526 states and 29149 transitions. [2022-03-15 14:21:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:24,768 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:24,768 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] [2022-03-15 14:21:24,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-15 14:21:24,769 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:24,769 INFO L85 PathProgramCache]: Analyzing trace with hash -210386171, now seen corresponding path program 49 times [2022-03-15 14:21:24,770 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:24,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608105459] [2022-03-15 14:21:24,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:24,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:25,183 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:25,183 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608105459] [2022-03-15 14:21:25,183 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608105459] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:25,183 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:25,183 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:25,183 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434289229] [2022-03-15 14:21:25,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:25,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:25,184 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:25,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:25,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:25,184 INFO L87 Difference]: Start difference. First operand 8526 states and 29149 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:25,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:25,570 INFO L93 Difference]: Finished difference Result 11380 states and 38858 transitions. [2022-03-15 14:21:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:25,570 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:25,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:25,597 INFO L225 Difference]: With dead ends: 11380 [2022-03-15 14:21:25,598 INFO L226 Difference]: Without dead ends: 11230 [2022-03-15 14:21:25,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=380, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:25,598 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 421 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:25,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1940 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:25,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11230 states. [2022-03-15 14:21:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11230 to 8496. [2022-03-15 14:21:25,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8496 states, 8495 states have (on average 3.4195409064155387) internal successors, (29049), 8495 states have internal predecessors, (29049), 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) [2022-03-15 14:21:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8496 states to 8496 states and 29049 transitions. [2022-03-15 14:21:25,770 INFO L78 Accepts]: Start accepts. Automaton has 8496 states and 29049 transitions. Word has length 182 [2022-03-15 14:21:25,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:25,770 INFO L470 AbstractCegarLoop]: Abstraction has 8496 states and 29049 transitions. [2022-03-15 14:21:25,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 8496 states and 29049 transitions. [2022-03-15 14:21:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:25,785 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:25,785 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] [2022-03-15 14:21:25,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-15 14:21:25,785 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2028272291, now seen corresponding path program 50 times [2022-03-15 14:21:25,786 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:25,786 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203491614] [2022-03-15 14:21:25,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:25,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:26,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:26,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203491614] [2022-03-15 14:21:26,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203491614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:26,147 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:26,147 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:26,147 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950758091] [2022-03-15 14:21:26,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:26,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:26,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:26,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:26,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:26,147 INFO L87 Difference]: Start difference. First operand 8496 states and 29049 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:26,558 INFO L93 Difference]: Finished difference Result 10504 states and 36053 transitions. [2022-03-15 14:21:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:26,584 INFO L225 Difference]: With dead ends: 10504 [2022-03-15 14:21:26,584 INFO L226 Difference]: Without dead ends: 10318 [2022-03-15 14:21:26,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:26,585 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 445 mSDsluCounter, 2342 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:26,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [445 Valid, 2295 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:26,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2022-03-15 14:21:26,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8528. [2022-03-15 14:21:26,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8528 states, 8527 states have (on average 3.4212501465931746) internal successors, (29173), 8527 states have internal predecessors, (29173), 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) [2022-03-15 14:21:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8528 states to 8528 states and 29173 transitions. [2022-03-15 14:21:26,751 INFO L78 Accepts]: Start accepts. Automaton has 8528 states and 29173 transitions. Word has length 182 [2022-03-15 14:21:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:26,752 INFO L470 AbstractCegarLoop]: Abstraction has 8528 states and 29173 transitions. [2022-03-15 14:21:26,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 8528 states and 29173 transitions. [2022-03-15 14:21:26,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:26,766 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:26,766 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] [2022-03-15 14:21:26,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-15 14:21:26,767 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:26,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:26,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1191529251, now seen corresponding path program 51 times [2022-03-15 14:21:26,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:26,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585594868] [2022-03-15 14:21:26,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:26,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:27,228 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:27,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:27,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585594868] [2022-03-15 14:21:27,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585594868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:27,229 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:27,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:27,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111600928] [2022-03-15 14:21:27,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:27,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:27,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:27,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:27,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:27,231 INFO L87 Difference]: Start difference. First operand 8528 states and 29173 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:27,630 INFO L93 Difference]: Finished difference Result 11152 states and 38234 transitions. [2022-03-15 14:21:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:27,630 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:27,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:27,657 INFO L225 Difference]: With dead ends: 11152 [2022-03-15 14:21:27,657 INFO L226 Difference]: Without dead ends: 11002 [2022-03-15 14:21:27,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:27,657 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 357 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:27,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 2051 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11002 states. [2022-03-15 14:21:27,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11002 to 8512. [2022-03-15 14:21:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8512 states, 8511 states have (on average 3.420162143108918) internal successors, (29109), 8511 states have internal predecessors, (29109), 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) [2022-03-15 14:21:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8512 states to 8512 states and 29109 transitions. [2022-03-15 14:21:27,823 INFO L78 Accepts]: Start accepts. Automaton has 8512 states and 29109 transitions. Word has length 182 [2022-03-15 14:21:27,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:27,823 INFO L470 AbstractCegarLoop]: Abstraction has 8512 states and 29109 transitions. [2022-03-15 14:21:27,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:27,823 INFO L276 IsEmpty]: Start isEmpty. Operand 8512 states and 29109 transitions. [2022-03-15 14:21:27,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:27,838 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:27,838 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] [2022-03-15 14:21:27,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-15 14:21:27,838 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:27,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1269771011, now seen corresponding path program 52 times [2022-03-15 14:21:27,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:27,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398170869] [2022-03-15 14:21:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:27,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:27,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:28,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:28,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:28,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398170869] [2022-03-15 14:21:28,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398170869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:28,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:28,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:28,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961834379] [2022-03-15 14:21:28,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:28,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:28,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:28,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:28,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:28,294 INFO L87 Difference]: Start difference. First operand 8512 states and 29109 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:28,703 INFO L93 Difference]: Finished difference Result 11254 states and 38573 transitions. [2022-03-15 14:21:28,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:28,703 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:28,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:28,730 INFO L225 Difference]: With dead ends: 11254 [2022-03-15 14:21:28,730 INFO L226 Difference]: Without dead ends: 11104 [2022-03-15 14:21:28,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:28,731 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 538 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:28,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [538 Valid, 2183 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:28,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11104 states. [2022-03-15 14:21:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11104 to 8488. [2022-03-15 14:21:28,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 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) [2022-03-15 14:21:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-03-15 14:21:28,967 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-03-15 14:21:28,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:28,967 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-03-15 14:21:28,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-03-15 14:21:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:28,981 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:28,981 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] [2022-03-15 14:21:28,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-15 14:21:28,982 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:28,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1833140033, now seen corresponding path program 53 times [2022-03-15 14:21:28,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:28,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732950156] [2022-03-15 14:21:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:28,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:29,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:29,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732950156] [2022-03-15 14:21:29,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732950156] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:29,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:29,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:29,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287953276] [2022-03-15 14:21:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:29,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:29,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:29,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:29,391 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:29,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:29,819 INFO L93 Difference]: Finished difference Result 10586 states and 36098 transitions. [2022-03-15 14:21:29,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:29,820 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:29,845 INFO L225 Difference]: With dead ends: 10586 [2022-03-15 14:21:29,845 INFO L226 Difference]: Without dead ends: 10436 [2022-03-15 14:21:29,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:29,845 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 437 mSDsluCounter, 2658 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 2585 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:29,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [437 Valid, 2585 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10436 states. [2022-03-15 14:21:29,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10436 to 8788. [2022-03-15 14:21:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 8787 states have (on average 3.4111756003186526) internal successors, (29974), 8787 states have internal predecessors, (29974), 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) [2022-03-15 14:21:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 29974 transitions. [2022-03-15 14:21:30,017 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 29974 transitions. Word has length 182 [2022-03-15 14:21:30,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:30,017 INFO L470 AbstractCegarLoop]: Abstraction has 8788 states and 29974 transitions. [2022-03-15 14:21:30,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:30,018 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 29974 transitions. [2022-03-15 14:21:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:30,032 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:30,033 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] [2022-03-15 14:21:30,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-15 14:21:30,033 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1433510019, now seen corresponding path program 54 times [2022-03-15 14:21:30,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:30,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097097471] [2022-03-15 14:21:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:30,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:30,463 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:30,463 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097097471] [2022-03-15 14:21:30,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097097471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:30,463 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:30,463 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:30,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046885711] [2022-03-15 14:21:30,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:30,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:30,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:30,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:30,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:30,464 INFO L87 Difference]: Start difference. First operand 8788 states and 29974 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:30,844 INFO L93 Difference]: Finished difference Result 11446 states and 39030 transitions. [2022-03-15 14:21:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:30,844 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:30,871 INFO L225 Difference]: With dead ends: 11446 [2022-03-15 14:21:30,871 INFO L226 Difference]: Without dead ends: 11296 [2022-03-15 14:21:30,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:30,872 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 545 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:30,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [545 Valid, 1843 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11296 states. [2022-03-15 14:21:31,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11296 to 8758. [2022-03-15 14:21:31,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8758 states, 8757 states have (on average 3.408016443987667) internal successors, (29844), 8757 states have internal predecessors, (29844), 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) [2022-03-15 14:21:31,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8758 states to 8758 states and 29844 transitions. [2022-03-15 14:21:31,036 INFO L78 Accepts]: Start accepts. Automaton has 8758 states and 29844 transitions. Word has length 182 [2022-03-15 14:21:31,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:31,037 INFO L470 AbstractCegarLoop]: Abstraction has 8758 states and 29844 transitions. [2022-03-15 14:21:31,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:31,037 INFO L276 IsEmpty]: Start isEmpty. Operand 8758 states and 29844 transitions. [2022-03-15 14:21:31,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:31,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:31,052 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] [2022-03-15 14:21:31,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-15 14:21:31,052 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1214084581, now seen corresponding path program 55 times [2022-03-15 14:21:31,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:31,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759308736] [2022-03-15 14:21:31,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:31,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:31,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:31,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759308736] [2022-03-15 14:21:31,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759308736] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:31,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:31,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:31,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133790178] [2022-03-15 14:21:31,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:31,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:31,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:31,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:31,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:31,483 INFO L87 Difference]: Start difference. First operand 8758 states and 29844 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:31,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:31,920 INFO L93 Difference]: Finished difference Result 11581 states and 39520 transitions. [2022-03-15 14:21:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:31,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:31,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:31,948 INFO L225 Difference]: With dead ends: 11581 [2022-03-15 14:21:31,948 INFO L226 Difference]: Without dead ends: 11431 [2022-03-15 14:21:31,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:31,948 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 398 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:31,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [398 Valid, 2173 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:31,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11431 states. [2022-03-15 14:21:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11431 to 8728. [2022-03-15 14:21:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8728 states, 8727 states have (on average 3.4082731752033917) internal successors, (29744), 8727 states have internal predecessors, (29744), 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) [2022-03-15 14:21:32,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8728 states to 8728 states and 29744 transitions. [2022-03-15 14:21:32,122 INFO L78 Accepts]: Start accepts. Automaton has 8728 states and 29744 transitions. Word has length 182 [2022-03-15 14:21:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:32,122 INFO L470 AbstractCegarLoop]: Abstraction has 8728 states and 29744 transitions. [2022-03-15 14:21:32,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8728 states and 29744 transitions. [2022-03-15 14:21:32,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:32,137 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:32,137 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] [2022-03-15 14:21:32,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-15 14:21:32,137 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:32,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:32,137 INFO L85 PathProgramCache]: Analyzing trace with hash -501599589, now seen corresponding path program 56 times [2022-03-15 14:21:32,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:32,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429566630] [2022-03-15 14:21:32,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:32,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:32,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:32,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429566630] [2022-03-15 14:21:32,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429566630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:32,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:32,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:32,589 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051310534] [2022-03-15 14:21:32,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:32,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:32,589 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:32,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:32,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:32,589 INFO L87 Difference]: Start difference. First operand 8728 states and 29744 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:32,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:32,989 INFO L93 Difference]: Finished difference Result 11350 states and 38758 transitions. [2022-03-15 14:21:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:32,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:32,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:33,016 INFO L225 Difference]: With dead ends: 11350 [2022-03-15 14:21:33,016 INFO L226 Difference]: Without dead ends: 11200 [2022-03-15 14:21:33,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:33,016 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 537 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 1771 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:33,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 1771 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:33,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11200 states. [2022-03-15 14:21:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11200 to 8488. [2022-03-15 14:21:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8488 states, 8487 states have (on average 3.4192294096854012) internal successors, (29019), 8487 states have internal predecessors, (29019), 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) [2022-03-15 14:21:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8488 states to 8488 states and 29019 transitions. [2022-03-15 14:21:33,251 INFO L78 Accepts]: Start accepts. Automaton has 8488 states and 29019 transitions. Word has length 182 [2022-03-15 14:21:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:33,251 INFO L470 AbstractCegarLoop]: Abstraction has 8488 states and 29019 transitions. [2022-03-15 14:21:33,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8488 states and 29019 transitions. [2022-03-15 14:21:33,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:33,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:33,266 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] [2022-03-15 14:21:33,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-15 14:21:33,266 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:33,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:33,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1963569153, now seen corresponding path program 57 times [2022-03-15 14:21:33,267 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:33,267 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504010427] [2022-03-15 14:21:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:33,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:33,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504010427] [2022-03-15 14:21:33,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504010427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:33,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:33,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:33,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233427814] [2022-03-15 14:21:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:33,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:33,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:33,602 INFO L87 Difference]: Start difference. First operand 8488 states and 29019 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:33,990 INFO L93 Difference]: Finished difference Result 10496 states and 36023 transitions. [2022-03-15 14:21:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:21:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:33,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:34,014 INFO L225 Difference]: With dead ends: 10496 [2022-03-15 14:21:34,015 INFO L226 Difference]: Without dead ends: 10310 [2022-03-15 14:21:34,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:34,015 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 448 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:34,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 2086 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:34,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10310 states. [2022-03-15 14:21:34,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10310 to 8568. [2022-03-15 14:21:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8568 states, 8567 states have (on average 3.422785105637913) internal successors, (29323), 8567 states have internal predecessors, (29323), 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) [2022-03-15 14:21:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8568 states to 8568 states and 29323 transitions. [2022-03-15 14:21:34,174 INFO L78 Accepts]: Start accepts. Automaton has 8568 states and 29323 transitions. Word has length 182 [2022-03-15 14:21:34,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:34,174 INFO L470 AbstractCegarLoop]: Abstraction has 8568 states and 29323 transitions. [2022-03-15 14:21:34,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8568 states and 29323 transitions. [2022-03-15 14:21:34,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:34,189 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:34,189 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] [2022-03-15 14:21:34,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-15 14:21:34,189 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:34,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:34,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1126826113, now seen corresponding path program 58 times [2022-03-15 14:21:34,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:34,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991005113] [2022-03-15 14:21:34,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:34,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:34,650 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:34,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991005113] [2022-03-15 14:21:34,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991005113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:34,650 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:34,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:34,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137743957] [2022-03-15 14:21:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:34,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:34,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:34,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:34,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:34,651 INFO L87 Difference]: Start difference. First operand 8568 states and 29323 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:35,116 INFO L93 Difference]: Finished difference Result 11292 states and 38714 transitions. [2022-03-15 14:21:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:35,116 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:35,141 INFO L225 Difference]: With dead ends: 11292 [2022-03-15 14:21:35,142 INFO L226 Difference]: Without dead ends: 11142 [2022-03-15 14:21:35,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:35,143 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 349 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:35,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 2480 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:35,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11142 states. [2022-03-15 14:21:35,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11142 to 8552. [2022-03-15 14:21:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8551 states have (on average 3.4217050637352355) internal successors, (29259), 8551 states have internal predecessors, (29259), 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) [2022-03-15 14:21:35,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 29259 transitions. [2022-03-15 14:21:35,305 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 29259 transitions. Word has length 182 [2022-03-15 14:21:35,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:35,306 INFO L470 AbstractCegarLoop]: Abstraction has 8552 states and 29259 transitions. [2022-03-15 14:21:35,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:35,306 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 29259 transitions. [2022-03-15 14:21:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:35,320 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:35,320 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] [2022-03-15 14:21:35,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-15 14:21:35,320 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:35,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:35,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1334474149, now seen corresponding path program 59 times [2022-03-15 14:21:35,321 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:35,321 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367600211] [2022-03-15 14:21:35,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:35,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:35,765 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:35,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367600211] [2022-03-15 14:21:35,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367600211] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:35,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:35,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:35,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407613950] [2022-03-15 14:21:35,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:35,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:35,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:35,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:35,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:35,766 INFO L87 Difference]: Start difference. First operand 8552 states and 29259 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:36,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:36,289 INFO L93 Difference]: Finished difference Result 11441 states and 39195 transitions. [2022-03-15 14:21:36,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:36,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:36,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:36,315 INFO L225 Difference]: With dead ends: 11441 [2022-03-15 14:21:36,315 INFO L226 Difference]: Without dead ends: 11291 [2022-03-15 14:21:36,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:36,315 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 389 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2928 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:36,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2928 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 918 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:21:36,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11291 states. [2022-03-15 14:21:36,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11291 to 8536. [2022-03-15 14:21:36,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 8535 states have (on average 3.421089630931459) internal successors, (29199), 8535 states have internal predecessors, (29199), 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) [2022-03-15 14:21:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 29199 transitions. [2022-03-15 14:21:36,476 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 29199 transitions. Word has length 182 [2022-03-15 14:21:36,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:36,476 INFO L470 AbstractCegarLoop]: Abstraction has 8536 states and 29199 transitions. [2022-03-15 14:21:36,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:36,477 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 29199 transitions. [2022-03-15 14:21:36,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-03-15 14:21:36,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:36,491 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] [2022-03-15 14:21:36,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-15 14:21:36,491 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:36,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1861367203, now seen corresponding path program 60 times [2022-03-15 14:21:36,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:36,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263321363] [2022-03-15 14:21:36,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:36,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:36,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:36,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:36,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263321363] [2022-03-15 14:21:36,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263321363] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:36,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:21:36,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-15 14:21:36,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716833796] [2022-03-15 14:21:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:36,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-15 14:21:36,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-15 14:21:36,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:21:36,941 INFO L87 Difference]: Start difference. First operand 8536 states and 29199 transitions. Second operand has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:37,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:37,373 INFO L93 Difference]: Finished difference Result 11218 states and 38438 transitions. [2022-03-15 14:21:37,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-15 14:21:37,373 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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 182 [2022-03-15 14:21:37,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:37,398 INFO L225 Difference]: With dead ends: 11218 [2022-03-15 14:21:37,398 INFO L226 Difference]: Without dead ends: 11068 [2022-03-15 14:21:37,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=121, Invalid=385, Unknown=0, NotChecked=0, Total=506 [2022-03-15 14:21:37,399 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 512 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:37,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [512 Valid, 2129 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 14:21:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11068 states. [2022-03-15 14:21:37,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11068 to 8360. [2022-03-15 14:21:37,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8360 states, 8359 states have (on average 3.4184711089843285) internal successors, (28575), 8359 states have internal predecessors, (28575), 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) [2022-03-15 14:21:37,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8360 states to 8360 states and 28575 transitions. [2022-03-15 14:21:37,604 INFO L78 Accepts]: Start accepts. Automaton has 8360 states and 28575 transitions. Word has length 182 [2022-03-15 14:21:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:37,604 INFO L470 AbstractCegarLoop]: Abstraction has 8360 states and 28575 transitions. [2022-03-15 14:21:37,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.11111111111111) internal successors, (182), 18 states have internal predecessors, (182), 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) [2022-03-15 14:21:37,604 INFO L276 IsEmpty]: Start isEmpty. Operand 8360 states and 28575 transitions. [2022-03-15 14:21:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-03-15 14:21:37,618 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:37,618 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] [2022-03-15 14:21:37,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-15 14:21:37,618 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1224210520, now seen corresponding path program 1 times [2022-03-15 14:21:37,619 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:37,619 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129343171] [2022-03-15 14:21:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:37,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:37,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:37,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129343171] [2022-03-15 14:21:37,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129343171] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:37,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496499982] [2022-03-15 14:21:37,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:37,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:37,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:37,663 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) [2022-03-15 14:21:37,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:21:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:37,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:21:37,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:38,078 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:21:38,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 14:21:38,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496499982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:21:38,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 14:21:38,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-03-15 14:21:38,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403498875] [2022-03-15 14:21:38,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:21:38,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 14:21:38,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:38,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 14:21:38,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:21:38,080 INFO L87 Difference]: Start difference. First operand 8360 states and 28575 transitions. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2022-03-15 14:21:38,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:38,183 INFO L93 Difference]: Finished difference Result 16640 states and 58245 transitions. [2022-03-15 14:21:38,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 14:21:38,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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 187 [2022-03-15 14:21:38,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:38,230 INFO L225 Difference]: With dead ends: 16640 [2022-03-15 14:21:38,230 INFO L226 Difference]: Without dead ends: 15860 [2022-03-15 14:21:38,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:21:38,230 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 173 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:38,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 397 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:21:38,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15860 states. [2022-03-15 14:21:38,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15860 to 13004. [2022-03-15 14:21:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13004 states, 13003 states have (on average 3.5440283011612705) internal successors, (46083), 13003 states have internal predecessors, (46083), 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) [2022-03-15 14:21:38,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 46083 transitions. [2022-03-15 14:21:38,498 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 46083 transitions. Word has length 187 [2022-03-15 14:21:38,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:38,499 INFO L470 AbstractCegarLoop]: Abstraction has 13004 states and 46083 transitions. [2022-03-15 14:21:38,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 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) [2022-03-15 14:21:38,499 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 46083 transitions. [2022-03-15 14:21:38,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-15 14:21:38,524 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:38,524 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:21:38,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:38,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:38,725 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:38,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:38,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1066332014, now seen corresponding path program 1 times [2022-03-15 14:21:38,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:38,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719503566] [2022-03-15 14:21:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:38,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:38,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:38,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719503566] [2022-03-15 14:21:38,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719503566] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:38,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374455430] [2022-03-15 14:21:38,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:38,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:38,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:38,793 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) [2022-03-15 14:21:38,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:21:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:38,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 14:21:38,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:39,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:39,650 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:39,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374455430] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:39,651 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:39,651 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-15 14:21:39,651 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728998448] [2022-03-15 14:21:39,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:39,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 14:21:39,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:39,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 14:21:39,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-15 14:21:39,652 INFO L87 Difference]: Start difference. First operand 13004 states and 46083 transitions. Second operand has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 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) [2022-03-15 14:21:39,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:39,913 INFO L93 Difference]: Finished difference Result 21336 states and 73984 transitions. [2022-03-15 14:21:39,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-15 14:21:39,914 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 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 [2022-03-15 14:21:39,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:39,961 INFO L225 Difference]: With dead ends: 21336 [2022-03-15 14:21:39,961 INFO L226 Difference]: Without dead ends: 17904 [2022-03-15 14:21:39,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:21:39,961 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 852 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:39,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 1449 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:21:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17904 states. [2022-03-15 14:21:40,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17904 to 16252. [2022-03-15 14:21:40,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16252 states, 16251 states have (on average 3.50772260168605) internal successors, (57004), 16251 states have internal predecessors, (57004), 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) [2022-03-15 14:21:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16252 states to 16252 states and 57004 transitions. [2022-03-15 14:21:40,277 INFO L78 Accepts]: Start accepts. Automaton has 16252 states and 57004 transitions. Word has length 188 [2022-03-15 14:21:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:40,277 INFO L470 AbstractCegarLoop]: Abstraction has 16252 states and 57004 transitions. [2022-03-15 14:21:40,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 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) [2022-03-15 14:21:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 16252 states and 57004 transitions. [2022-03-15 14:21:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-15 14:21:40,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:40,307 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] [2022-03-15 14:21:40,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:40,508 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,SelfDestructingSolverStorable64 [2022-03-15 14:21:40,508 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:40,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash -44480918, now seen corresponding path program 1 times [2022-03-15 14:21:40,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:40,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661240549] [2022-03-15 14:21:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:40,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:40,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:40,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661240549] [2022-03-15 14:21:40,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661240549] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:40,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191301144] [2022-03-15 14:21:40,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:40,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:40,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:40,567 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) [2022-03-15 14:21:40,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:21:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:40,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 14:21:40,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:41,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:41,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191301144] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:41,388 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:41,388 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-03-15 14:21:41,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52992491] [2022-03-15 14:21:41,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:41,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-15 14:21:41,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:41,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-15 14:21:41,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2022-03-15 14:21:41,389 INFO L87 Difference]: Start difference. First operand 16252 states and 57004 transitions. Second operand has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 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) [2022-03-15 14:21:41,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:41,721 INFO L93 Difference]: Finished difference Result 30484 states and 105398 transitions. [2022-03-15 14:21:41,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-15 14:21:41,722 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 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 [2022-03-15 14:21:41,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:41,776 INFO L225 Difference]: With dead ends: 30484 [2022-03-15 14:21:41,777 INFO L226 Difference]: Without dead ends: 21539 [2022-03-15 14:21:41,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:21:41,777 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 643 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:41,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [643 Valid, 1696 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:21:41,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2022-03-15 14:21:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 16503. [2022-03-15 14:21:42,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16503 states, 16502 states have (on average 3.4929705490243608) internal successors, (57641), 16502 states have internal predecessors, (57641), 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) [2022-03-15 14:21:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16503 states to 16503 states and 57641 transitions. [2022-03-15 14:21:42,235 INFO L78 Accepts]: Start accepts. Automaton has 16503 states and 57641 transitions. Word has length 188 [2022-03-15 14:21:42,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:42,235 INFO L470 AbstractCegarLoop]: Abstraction has 16503 states and 57641 transitions. [2022-03-15 14:21:42,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.842105263157896) internal successors, (263), 19 states have internal predecessors, (263), 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) [2022-03-15 14:21:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 16503 states and 57641 transitions. [2022-03-15 14:21:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:21:42,266 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:42,267 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:21:42,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:42,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:42,467 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:42,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:42,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1650696287, now seen corresponding path program 2 times [2022-03-15 14:21:42,468 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:42,468 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187818035] [2022-03-15 14:21:42,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:42,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:42,615 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:21:42,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:42,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187818035] [2022-03-15 14:21:42,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187818035] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:42,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429772281] [2022-03-15 14:21:42,616 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:21:42,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:42,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:42,617 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) [2022-03-15 14:21:42,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:21:42,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:21:42,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:21:42,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-15 14:21:42,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:21:43,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:21:44,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429772281] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:44,167 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:44,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2022-03-15 14:21:44,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672575863] [2022-03-15 14:21:44,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:44,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-15 14:21:44,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:44,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-15 14:21:44,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=625, Unknown=0, NotChecked=0, Total=812 [2022-03-15 14:21:44,168 INFO L87 Difference]: Start difference. First operand 16503 states and 57641 transitions. Second operand has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 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) [2022-03-15 14:21:44,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:44,579 INFO L93 Difference]: Finished difference Result 18386 states and 63392 transitions. [2022-03-15 14:21:44,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-15 14:21:44,580 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 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 195 [2022-03-15 14:21:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:44,620 INFO L225 Difference]: With dead ends: 18386 [2022-03-15 14:21:44,620 INFO L226 Difference]: Without dead ends: 16264 [2022-03-15 14:21:44,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=387, Invalid=1173, Unknown=0, NotChecked=0, Total=1560 [2022-03-15 14:21:44,621 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1101 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:44,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 2077 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:21:44,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16264 states. [2022-03-15 14:21:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16264 to 16259. [2022-03-15 14:21:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16259 states, 16258 states have (on average 3.506642883503506) internal successors, (57011), 16258 states have internal predecessors, (57011), 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) [2022-03-15 14:21:44,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16259 states to 16259 states and 57011 transitions. [2022-03-15 14:21:44,916 INFO L78 Accepts]: Start accepts. Automaton has 16259 states and 57011 transitions. Word has length 195 [2022-03-15 14:21:44,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:44,916 INFO L470 AbstractCegarLoop]: Abstraction has 16259 states and 57011 transitions. [2022-03-15 14:21:44,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 13.724137931034482) internal successors, (398), 29 states have internal predecessors, (398), 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) [2022-03-15 14:21:44,917 INFO L276 IsEmpty]: Start isEmpty. Operand 16259 states and 57011 transitions. [2022-03-15 14:21:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:21:44,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:44,947 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:21:44,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:45,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:45,148 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:45,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:45,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1930069325, now seen corresponding path program 2 times [2022-03-15 14:21:45,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:45,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774847805] [2022-03-15 14:21:45,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:45,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:45,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:45,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774847805] [2022-03-15 14:21:45,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774847805] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:45,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226246962] [2022-03-15 14:21:45,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:21:45,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:45,564 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) [2022-03-15 14:21:45,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:21:45,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:21:45,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:21:45,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-15 14:21:45,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:46,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:21:46,667 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:21:46,668 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 21 treesize of output 10 [2022-03-15 14:21:46,775 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:46,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:46,957 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-15 14:21:46,958 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 25 treesize of output 16 [2022-03-15 14:21:47,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:47,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226246962] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:47,805 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:47,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 14] total 37 [2022-03-15 14:21:47,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998262954] [2022-03-15 14:21:47,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:47,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-15 14:21:47,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:47,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-15 14:21:47,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2022-03-15 14:21:47,806 INFO L87 Difference]: Start difference. First operand 16259 states and 57011 transitions. Second operand has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 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) [2022-03-15 14:21:49,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:49,367 INFO L93 Difference]: Finished difference Result 85276 states and 297897 transitions. [2022-03-15 14:21:49,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-15 14:21:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 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 195 [2022-03-15 14:21:49,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:49,568 INFO L225 Difference]: With dead ends: 85276 [2022-03-15 14:21:49,568 INFO L226 Difference]: Without dead ends: 63134 [2022-03-15 14:21:49,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 369 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1265 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=951, Invalid=3339, Unknown=0, NotChecked=0, Total=4290 [2022-03-15 14:21:49,569 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 1512 mSDsluCounter, 4167 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4189 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:49,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 4189 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-15 14:21:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63134 states. [2022-03-15 14:21:50,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63134 to 33761. [2022-03-15 14:21:50,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33761 states, 33760 states have (on average 3.618601895734597) internal successors, (122164), 33760 states have internal predecessors, (122164), 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) [2022-03-15 14:21:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33761 states to 33761 states and 122164 transitions. [2022-03-15 14:21:50,511 INFO L78 Accepts]: Start accepts. Automaton has 33761 states and 122164 transitions. Word has length 195 [2022-03-15 14:21:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:50,511 INFO L470 AbstractCegarLoop]: Abstraction has 33761 states and 122164 transitions. [2022-03-15 14:21:50,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 10.621621621621621) internal successors, (393), 37 states have internal predecessors, (393), 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) [2022-03-15 14:21:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 33761 states and 122164 transitions. [2022-03-15 14:21:50,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:21:50,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:50,584 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:21:50,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:50,794 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,SelfDestructingSolverStorable67 [2022-03-15 14:21:50,795 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash 799326719, now seen corresponding path program 3 times [2022-03-15 14:21:50,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:50,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306867646] [2022-03-15 14:21:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:51,148 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:51,148 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:51,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306867646] [2022-03-15 14:21:51,148 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306867646] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:51,148 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229702151] [2022-03-15 14:21:51,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:21:51,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:51,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:51,149 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) [2022-03-15 14:21:51,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:21:51,293 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:21:51,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:21:51,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-15 14:21:51,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:51,753 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 14:21:51,753 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 23 treesize of output 10 [2022-03-15 14:21:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:21:51,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:51,906 INFO L353 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2022-03-15 14:21:51,906 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 25 treesize of output 16 [2022-03-15 14:21:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:21:52,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229702151] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:52,229 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:52,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 5, 5] total 22 [2022-03-15 14:21:52,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384235859] [2022-03-15 14:21:52,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:52,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-15 14:21:52,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-15 14:21:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2022-03-15 14:21:52,230 INFO L87 Difference]: Start difference. First operand 33761 states and 122164 transitions. Second operand has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 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) [2022-03-15 14:21:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:21:53,511 INFO L93 Difference]: Finished difference Result 43176 states and 153626 transitions. [2022-03-15 14:21:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-15 14:21:53,512 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 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 195 [2022-03-15 14:21:53,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:21:53,942 INFO L225 Difference]: With dead ends: 43176 [2022-03-15 14:21:53,942 INFO L226 Difference]: Without dead ends: 39382 [2022-03-15 14:21:53,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=298, Invalid=1424, Unknown=0, NotChecked=0, Total=1722 [2022-03-15 14:21:53,943 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 463 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-15 14:21:53,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 2853 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 693 Invalid, 0 Unknown, 62 Unchecked, 0.7s Time] [2022-03-15 14:21:53,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39382 states. [2022-03-15 14:21:54,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39382 to 34982. [2022-03-15 14:21:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34982 states, 34981 states have (on average 3.6216803407564107) internal successors, (126690), 34981 states have internal predecessors, (126690), 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) [2022-03-15 14:21:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34982 states to 34982 states and 126690 transitions. [2022-03-15 14:21:54,958 INFO L78 Accepts]: Start accepts. Automaton has 34982 states and 126690 transitions. Word has length 195 [2022-03-15 14:21:54,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:21:54,958 INFO L470 AbstractCegarLoop]: Abstraction has 34982 states and 126690 transitions. [2022-03-15 14:21:54,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 14.090909090909092) internal successors, (310), 22 states have internal predecessors, (310), 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) [2022-03-15 14:21:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 34982 states and 126690 transitions. [2022-03-15 14:21:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:21:55,037 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:21:55,038 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:21:55,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 14:21:55,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:55,238 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:21:55,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:21:55,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1879711941, now seen corresponding path program 4 times [2022-03-15 14:21:55,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:21:55,239 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987564477] [2022-03-15 14:21:55,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:21:55,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:21:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:21:55,882 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:55,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:21:55,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987564477] [2022-03-15 14:21:55,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987564477] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:21:55,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729953959] [2022-03-15 14:21:55,882 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:21:55,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:21:55,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:21:55,883 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) [2022-03-15 14:21:55,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:21:56,010 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:21:56,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:21:56,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-15 14:21:56,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:21:56,047 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:21:56,231 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:21:56,231 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 11 treesize of output 11 [2022-03-15 14:21:57,092 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:21:57,127 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 14:21:57,160 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:57,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:21:57,250 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1548 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1548) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-15 14:21:57,436 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:21:57,436 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 45 treesize of output 45 [2022-03-15 14:21:57,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-03-15 14:21:59,051 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:21:59,051 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729953959] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:21:59,051 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:21:59,051 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-03-15 14:21:59,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950049990] [2022-03-15 14:21:59,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:21:59,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-15 14:21:59,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:21:59,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-15 14:21:59,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2914, Unknown=1, NotChecked=110, Total=3306 [2022-03-15 14:21:59,052 INFO L87 Difference]: Start difference. First operand 34982 states and 126690 transitions. Second operand has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 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) [2022-03-15 14:22:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:22:06,200 INFO L93 Difference]: Finished difference Result 139174 states and 499828 transitions. [2022-03-15 14:22:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-03-15 14:22:06,200 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 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 195 [2022-03-15 14:22:06,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:22:06,859 INFO L225 Difference]: With dead ends: 139174 [2022-03-15 14:22:06,859 INFO L226 Difference]: Without dead ends: 125061 [2022-03-15 14:22:06,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 357 SyntacticMatches, 12 SemanticMatches, 126 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4735 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=2166, Invalid=13827, Unknown=13, NotChecked=250, Total=16256 [2022-03-15 14:22:06,861 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 4015 mSDsluCounter, 9230 mSDsCounter, 0 mSdLazyCounter, 2679 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4015 SdHoareTripleChecker+Valid, 8732 SdHoareTripleChecker+Invalid, 4113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 2679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1213 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:22:06,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4015 Valid, 8732 Invalid, 4113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 2679 Invalid, 0 Unknown, 1213 Unchecked, 1.2s Time] [2022-03-15 14:22:07,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125061 states. [2022-03-15 14:22:08,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125061 to 60557. [2022-03-15 14:22:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60557 states, 60556 states have (on average 3.708748926613383) internal successors, (224587), 60556 states have internal predecessors, (224587), 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) [2022-03-15 14:22:09,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60557 states to 60557 states and 224587 transitions. [2022-03-15 14:22:09,391 INFO L78 Accepts]: Start accepts. Automaton has 60557 states and 224587 transitions. Word has length 195 [2022-03-15 14:22:09,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:22:09,392 INFO L470 AbstractCegarLoop]: Abstraction has 60557 states and 224587 transitions. [2022-03-15 14:22:09,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.758620689655173) internal successors, (450), 58 states have internal predecessors, (450), 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) [2022-03-15 14:22:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand 60557 states and 224587 transitions. [2022-03-15 14:22:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:22:09,674 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:22:09,674 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:22:09,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-15 14:22:09,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:09,888 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:22:09,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:22:09,888 INFO L85 PathProgramCache]: Analyzing trace with hash -397770113, now seen corresponding path program 5 times [2022-03-15 14:22:09,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:22:09,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323708681] [2022-03-15 14:22:09,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:22:09,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:22:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:11,133 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:22:11,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:22:11,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323708681] [2022-03-15 14:22:11,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323708681] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:22:11,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293476049] [2022-03-15 14:22:11,133 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:22:11,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:11,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:22:11,135 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) [2022-03-15 14:22:11,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:22:11,269 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-03-15 14:22:11,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:22:11,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-15 14:22:11,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:22:11,307 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:22:11,336 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:22:11,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:22:11,450 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:22:11,450 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 11 treesize of output 11 [2022-03-15 14:22:11,818 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:22:11,973 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 14:22:11,974 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 23 treesize of output 10 [2022-03-15 14:22:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:22:12,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 14:22:12,055 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293476049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:22:12,055 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 14:22:12,055 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [29] total 39 [2022-03-15 14:22:12,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311492830] [2022-03-15 14:22:12,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:22:12,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 14:22:12,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:22:12,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 14:22:12,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1376, Unknown=0, NotChecked=0, Total=1482 [2022-03-15 14:22:12,056 INFO L87 Difference]: Start difference. First operand 60557 states and 224587 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 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) [2022-03-15 14:22:12,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:22:12,914 INFO L93 Difference]: Finished difference Result 80221 states and 293711 transitions. [2022-03-15 14:22:12,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:22:12,914 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 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 195 [2022-03-15 14:22:12,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:22:13,205 INFO L225 Difference]: With dead ends: 80221 [2022-03-15 14:22:13,206 INFO L226 Difference]: Without dead ends: 78359 [2022-03-15 14:22:13,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=204, Invalid=2346, Unknown=0, NotChecked=0, Total=2550 [2022-03-15 14:22:13,206 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 431 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:22:13,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [431 Valid, 1721 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 272 Invalid, 0 Unknown, 68 Unchecked, 0.1s Time] [2022-03-15 14:22:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78359 states. [2022-03-15 14:22:14,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78359 to 63413. [2022-03-15 14:22:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63413 states, 63412 states have (on average 3.7079259446161608) internal successors, (235127), 63412 states have internal predecessors, (235127), 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) [2022-03-15 14:22:15,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63413 states to 63413 states and 235127 transitions. [2022-03-15 14:22:15,216 INFO L78 Accepts]: Start accepts. Automaton has 63413 states and 235127 transitions. Word has length 195 [2022-03-15 14:22:15,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:22:15,216 INFO L470 AbstractCegarLoop]: Abstraction has 63413 states and 235127 transitions. [2022-03-15 14:22:15,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 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) [2022-03-15 14:22:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 63413 states and 235127 transitions. [2022-03-15 14:22:15,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:22:15,382 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:22:15,383 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:22:15,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 14:22:15,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:15,590 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:22:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:22:15,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1963341365, now seen corresponding path program 6 times [2022-03-15 14:22:15,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:22:15,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969505608] [2022-03-15 14:22:15,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:22:15,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:22:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:16,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:22:16,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969505608] [2022-03-15 14:22:16,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969505608] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:22:16,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255235411] [2022-03-15 14:22:16,244 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:22:16,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:16,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:22:16,245 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) [2022-03-15 14:22:16,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:22:16,386 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:22:16,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:22:16,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-15 14:22:16,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:22:17,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:22:17,242 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:22:17,430 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 14:22:17,430 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 23 treesize of output 10 [2022-03-15 14:22:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:17,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:22:17,797 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:22:17,797 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 45 treesize of output 45 [2022-03-15 14:22:17,800 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-03-15 14:22:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:19,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255235411] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:22:19,421 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:22:19,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 58 [2022-03-15 14:22:19,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877609100] [2022-03-15 14:22:19,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:22:19,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-15 14:22:19,422 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:22:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-15 14:22:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=3069, Unknown=0, NotChecked=0, Total=3306 [2022-03-15 14:22:19,422 INFO L87 Difference]: Start difference. First operand 63413 states and 235127 transitions. Second operand has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 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) [2022-03-15 14:22:25,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:22:25,811 INFO L93 Difference]: Finished difference Result 131492 states and 482053 transitions. [2022-03-15 14:22:25,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-15 14:22:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 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 195 [2022-03-15 14:22:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:22:26,553 INFO L225 Difference]: With dead ends: 131492 [2022-03-15 14:22:26,553 INFO L226 Difference]: Without dead ends: 130008 [2022-03-15 14:22:26,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 365 SyntacticMatches, 15 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4008 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1725, Invalid=12795, Unknown=0, NotChecked=0, Total=14520 [2022-03-15 14:22:26,554 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 3583 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 3184 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 10626 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 3184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 182 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:22:26,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 10626 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 3184 Invalid, 0 Unknown, 182 Unchecked, 1.3s Time] [2022-03-15 14:22:26,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130008 states. [2022-03-15 14:22:28,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130008 to 63667. [2022-03-15 14:22:28,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63667 states, 63666 states have (on average 3.7056199541356456) internal successors, (235922), 63666 states have internal predecessors, (235922), 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) [2022-03-15 14:22:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63667 states to 63667 states and 235922 transitions. [2022-03-15 14:22:29,014 INFO L78 Accepts]: Start accepts. Automaton has 63667 states and 235922 transitions. Word has length 195 [2022-03-15 14:22:29,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:22:29,014 INFO L470 AbstractCegarLoop]: Abstraction has 63667 states and 235922 transitions. [2022-03-15 14:22:29,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 7.517241379310345) internal successors, (436), 58 states have internal predecessors, (436), 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) [2022-03-15 14:22:29,014 INFO L276 IsEmpty]: Start isEmpty. Operand 63667 states and 235922 transitions. [2022-03-15 14:22:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-03-15 14:22:29,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:22:29,392 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:22:29,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-15 14:22:29,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:29,593 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:22:29,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:22:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash -882956143, now seen corresponding path program 7 times [2022-03-15 14:22:29,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:22:29,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643718840] [2022-03-15 14:22:29,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:22:29,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:22:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:30,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:22:30,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643718840] [2022-03-15 14:22:30,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643718840] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:22:30,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061985027] [2022-03-15 14:22:30,403 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:22:30,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:30,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:22:30,404 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) [2022-03-15 14:22:30,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 14:22:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:30,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 49 conjunts are in the unsatisfiable core [2022-03-15 14:22:30,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:22:30,697 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:22:30,725 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-03-15 14:22:30,725 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 18 [2022-03-15 14:22:31,079 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:22:31,079 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 15 treesize of output 15 [2022-03-15 14:22:31,976 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 21 [2022-03-15 14:22:32,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:22:32,242 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:22:32,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 14:22:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:32,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:22:32,427 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1688 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1688) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-15 14:22:32,665 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:22:32,665 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 85 treesize of output 85 [2022-03-15 14:22:32,668 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 58 [2022-03-15 14:22:32,670 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 46 [2022-03-15 14:22:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:35,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061985027] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:22:35,071 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:22:35,071 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23, 23] total 68 [2022-03-15 14:22:35,071 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166295446] [2022-03-15 14:22:35,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:22:35,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-15 14:22:35,072 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:22:35,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-15 14:22:35,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=4099, Unknown=2, NotChecked=130, Total=4556 [2022-03-15 14:22:35,072 INFO L87 Difference]: Start difference. First operand 63667 states and 235922 transitions. Second operand has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 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) [2022-03-15 14:22:47,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:22:47,962 INFO L93 Difference]: Finished difference Result 231914 states and 848599 transitions. [2022-03-15 14:22:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-15 14:22:47,963 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 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 195 [2022-03-15 14:22:47,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:22:49,151 INFO L225 Difference]: With dead ends: 231914 [2022-03-15 14:22:49,151 INFO L226 Difference]: Without dead ends: 213213 [2022-03-15 14:22:49,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 357 SyntacticMatches, 24 SemanticMatches, 155 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8004 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=2946, Invalid=21215, Unknown=23, NotChecked=308, Total=24492 [2022-03-15 14:22:49,152 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 6034 mSDsluCounter, 14218 mSDsCounter, 0 mSdLazyCounter, 4987 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6034 SdHoareTripleChecker+Valid, 13306 SdHoareTripleChecker+Invalid, 8052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 4987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2692 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:22:49,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6034 Valid, 13306 Invalid, 8052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 4987 Invalid, 0 Unknown, 2692 Unchecked, 2.3s Time] [2022-03-15 14:22:49,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213213 states. [2022-03-15 14:22:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213213 to 59461. [2022-03-15 14:22:52,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59461 states, 59460 states have (on average 3.6814328960645812) internal successors, (218898), 59460 states have internal predecessors, (218898), 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) [2022-03-15 14:22:53,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59461 states to 59461 states and 218898 transitions. [2022-03-15 14:22:53,117 INFO L78 Accepts]: Start accepts. Automaton has 59461 states and 218898 transitions. Word has length 195 [2022-03-15 14:22:53,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:22:53,117 INFO L470 AbstractCegarLoop]: Abstraction has 59461 states and 218898 transitions. [2022-03-15 14:22:53,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 6.897058823529412) internal successors, (469), 68 states have internal predecessors, (469), 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) [2022-03-15 14:22:53,118 INFO L276 IsEmpty]: Start isEmpty. Operand 59461 states and 218898 transitions. [2022-03-15 14:22:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-15 14:22:53,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:22:53,246 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:22:53,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-15 14:22:53,446 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,SelfDestructingSolverStorable72 [2022-03-15 14:22:53,446 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:22:53,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:22:53,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1483032586, now seen corresponding path program 3 times [2022-03-15 14:22:53,447 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:22:53,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670995226] [2022-03-15 14:22:53,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:22:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:22:53,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 14:22:53,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:22:53,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670995226] [2022-03-15 14:22:53,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670995226] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:22:53,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511026577] [2022-03-15 14:22:53,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:22:53,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:53,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:22:53,773 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) [2022-03-15 14:22:53,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 14:22:53,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:22:53,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:22:53,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:22:53,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:22:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-15 14:22:54,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 14:22:54,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511026577] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:22:54,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 14:22:54,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-03-15 14:22:54,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578637646] [2022-03-15 14:22:54,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:22:54,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 14:22:54,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:22:54,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 14:22:54,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:22:54,171 INFO L87 Difference]: Start difference. First operand 59461 states and 218898 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 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) [2022-03-15 14:22:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:22:54,781 INFO L93 Difference]: Finished difference Result 88471 states and 323334 transitions. [2022-03-15 14:22:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 14:22:54,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 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 202 [2022-03-15 14:22:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:22:55,112 INFO L225 Difference]: With dead ends: 88471 [2022-03-15 14:22:55,113 INFO L226 Difference]: Without dead ends: 86165 [2022-03-15 14:22:55,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:22:55,113 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 189 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 387 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 [2022-03-15 14:22:55,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 387 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:22:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86165 states. [2022-03-15 14:22:56,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86165 to 75916. [2022-03-15 14:22:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75916 states, 75915 states have (on average 3.6963841138115) internal successors, (280611), 75915 states have internal predecessors, (280611), 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) [2022-03-15 14:22:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75916 states to 75916 states and 280611 transitions. [2022-03-15 14:22:57,410 INFO L78 Accepts]: Start accepts. Automaton has 75916 states and 280611 transitions. Word has length 202 [2022-03-15 14:22:57,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:22:57,410 INFO L470 AbstractCegarLoop]: Abstraction has 75916 states and 280611 transitions. [2022-03-15 14:22:57,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 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) [2022-03-15 14:22:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 75916 states and 280611 transitions. [2022-03-15 14:22:57,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-15 14:22:57,603 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:22:57,603 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:22:57,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 14:22:57,803 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,SelfDestructingSolverStorable73 [2022-03-15 14:22:57,804 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:22:57,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:22:57,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1449450942, now seen corresponding path program 8 times [2022-03-15 14:22:57,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:22:57,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685355645] [2022-03-15 14:22:57,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:22:57,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:22:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:22:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:22:59,483 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:22:59,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685355645] [2022-03-15 14:22:59,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685355645] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:22:59,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393527452] [2022-03-15 14:22:59,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:22:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:22:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:22:59,485 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) [2022-03-15 14:22:59,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 14:22:59,629 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:22:59,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:22:59,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-15 14:22:59,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:23:00,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:23:00,887 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:23:00,930 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-03-15 14:23:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:23:01,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:23:01,275 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:23:01,275 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 45 treesize of output 45 [2022-03-15 14:23:01,278 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-03-15 14:23:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:23:02,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393527452] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:23:02,848 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:23:02,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 23, 23] total 67 [2022-03-15 14:23:02,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422450343] [2022-03-15 14:23:02,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:23:02,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-03-15 14:23:02,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:23:02,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-03-15 14:23:02,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=4102, Unknown=2, NotChecked=0, Total=4422 [2022-03-15 14:23:02,849 INFO L87 Difference]: Start difference. First operand 75916 states and 280611 transitions. Second operand has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 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) [2022-03-15 14:23:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:23:20,967 INFO L93 Difference]: Finished difference Result 400204 states and 1460550 transitions. [2022-03-15 14:23:20,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-15 14:23:20,967 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 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 202 [2022-03-15 14:23:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:23:23,605 INFO L225 Difference]: With dead ends: 400204 [2022-03-15 14:23:23,605 INFO L226 Difference]: Without dead ends: 390794 [2022-03-15 14:23:23,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 367 SyntacticMatches, 8 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11722 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=4506, Invalid=31024, Unknown=2, NotChecked=0, Total=35532 [2022-03-15 14:23:23,606 INFO L933 BasicCegarLoop]: 440 mSDtfsCounter, 6425 mSDsluCounter, 17849 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 16690 SdHoareTripleChecker+Invalid, 7170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 502 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:23:23,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6425 Valid, 16690 Invalid, 7170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 6183 Invalid, 0 Unknown, 502 Unchecked, 3.3s Time] [2022-03-15 14:23:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390794 states. [2022-03-15 14:23:30,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390794 to 147094. [2022-03-15 14:23:31,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147094 states, 147093 states have (on average 3.7853330885902117) internal successors, (556796), 147093 states have internal predecessors, (556796), 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) [2022-03-15 14:23:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147094 states to 147094 states and 556796 transitions. [2022-03-15 14:23:32,093 INFO L78 Accepts]: Start accepts. Automaton has 147094 states and 556796 transitions. Word has length 202 [2022-03-15 14:23:32,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:23:32,093 INFO L470 AbstractCegarLoop]: Abstraction has 147094 states and 556796 transitions. [2022-03-15 14:23:32,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 6.955223880597015) internal successors, (466), 67 states have internal predecessors, (466), 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) [2022-03-15 14:23:32,093 INFO L276 IsEmpty]: Start isEmpty. Operand 147094 states and 556796 transitions. [2022-03-15 14:23:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-15 14:23:32,867 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:23:32,867 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:23:32,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 14:23:33,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:23:33,081 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:23:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:23:33,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1771842876, now seen corresponding path program 9 times [2022-03-15 14:23:33,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:23:33,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707541252] [2022-03-15 14:23:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:23:33,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:23:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:23:34,474 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:23:34,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:23:34,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707541252] [2022-03-15 14:23:34,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707541252] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:23:34,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838152290] [2022-03-15 14:23:34,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:23:34,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:23:34,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:23:34,477 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) [2022-03-15 14:23:34,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-15 14:23:34,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:23:34,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:23:34,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-15 14:23:34,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:23:35,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:23:35,217 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:23:35,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 14:23:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-15 14:23:35,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:23:35,378 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1834 (Array Int Int))) (not (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_1834) c_~q1~0.base) (+ (* c_~q1_front~0 4) c_~q1~0.offset)) 0))) is different from false [2022-03-15 14:23:35,416 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:23:35,417 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 45 treesize of output 45 [2022-03-15 14:23:35,421 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2022-03-15 14:23:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2022-03-15 14:23:36,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838152290] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:23:36,028 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:23:36,028 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 12] total 49 [2022-03-15 14:23:36,028 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195905604] [2022-03-15 14:23:36,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:23:36,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-15 14:23:36,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:23:36,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-15 14:23:36,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=2123, Unknown=1, NotChecked=92, Total=2352 [2022-03-15 14:23:36,029 INFO L87 Difference]: Start difference. First operand 147094 states and 556796 transitions. Second operand has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 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) [2022-03-15 14:23:42,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:23:42,164 INFO L93 Difference]: Finished difference Result 193050 states and 721872 transitions. [2022-03-15 14:23:42,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-15 14:23:42,165 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 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 202 [2022-03-15 14:23:42,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:23:43,362 INFO L225 Difference]: With dead ends: 193050 [2022-03-15 14:23:43,362 INFO L226 Difference]: Without dead ends: 186906 [2022-03-15 14:23:43,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 388 SyntacticMatches, 1 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2859 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1667, Invalid=10768, Unknown=1, NotChecked=220, Total=12656 [2022-03-15 14:23:43,363 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 2170 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 5445 SdHoareTripleChecker+Invalid, 2374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-15 14:23:43,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 5445 Invalid, 2374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1909 Invalid, 0 Unknown, 366 Unchecked, 0.8s Time] [2022-03-15 14:23:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186906 states. [2022-03-15 14:23:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186906 to 143636. [2022-03-15 14:23:48,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143636 states, 143635 states have (on average 3.7910537125352457) internal successors, (544528), 143635 states have internal predecessors, (544528), 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) [2022-03-15 14:23:49,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143636 states to 143636 states and 544528 transitions. [2022-03-15 14:23:49,308 INFO L78 Accepts]: Start accepts. Automaton has 143636 states and 544528 transitions. Word has length 202 [2022-03-15 14:23:49,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:23:49,308 INFO L470 AbstractCegarLoop]: Abstraction has 143636 states and 544528 transitions. [2022-03-15 14:23:49,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 9.204081632653061) internal successors, (451), 49 states have internal predecessors, (451), 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) [2022-03-15 14:23:49,308 INFO L276 IsEmpty]: Start isEmpty. Operand 143636 states and 544528 transitions. [2022-03-15 14:23:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-03-15 14:23:50,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:23:50,013 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-03-15 14:23:50,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-15 14:23:50,214 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,SelfDestructingSolverStorable75 [2022-03-15 14:23:50,214 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 14:23:50,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:23:50,216 INFO L85 PathProgramCache]: Analyzing trace with hash 82848270, now seen corresponding path program 10 times [2022-03-15 14:23:50,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:23:50,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845765300] [2022-03-15 14:23:50,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:23:50,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:23:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:23:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:23:53,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:23:53,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845765300] [2022-03-15 14:23:53,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845765300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:23:53,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527730286] [2022-03-15 14:23:53,605 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:23:53,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:23:53,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:23:53,606 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) [2022-03-15 14:23:53,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-15 14:23:53,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:23:53,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:23:53,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-15 14:23:53,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:23:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:23:55,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:23:55,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:23:55,703 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:23:55,770 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 14:23:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:23:55,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:23:56,361 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:23:56,361 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 167 treesize of output 159 [2022-03-15 14:23:56,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 126 [2022-03-15 14:23:56,369 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 102 [2022-03-15 14:23:58,665 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:23:58,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527730286] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:23:58,665 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:23:58,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 25, 25] total 87 [2022-03-15 14:23:58,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100880586] [2022-03-15 14:23:58,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:23:58,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-15 14:23:58,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:23:58,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-15 14:23:58,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=7063, Unknown=34, NotChecked=0, Total=7482 [2022-03-15 14:23:58,667 INFO L87 Difference]: Start difference. First operand 143636 states and 544528 transitions. Second operand has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 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) [2022-03-15 14:24:43,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:24:43,661 INFO L93 Difference]: Finished difference Result 727448 states and 2739609 transitions. [2022-03-15 14:24:43,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2022-03-15 14:24:43,662 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.747126436781609) internal successors, (500), 87 states have internal predecessors, (500), 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 202 [2022-03-15 14:24:43,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:24:49,233 INFO L225 Difference]: With dead ends: 727448 [2022-03-15 14:24:49,234 INFO L226 Difference]: Without dead ends: 704930 [2022-03-15 14:24:49,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 365 SyntacticMatches, 9 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26430 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=7838, Invalid=74039, Unknown=205, NotChecked=0, Total=82082 [2022-03-15 14:24:49,237 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 10154 mSDsluCounter, 43309 mSDsCounter, 0 mSdLazyCounter, 13149 mSolverCounterSat, 692 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10154 SdHoareTripleChecker+Valid, 40023 SdHoareTripleChecker+Invalid, 22233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 13149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8392 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:24:49,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10154 Valid, 40023 Invalid, 22233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [692 Valid, 13149 Invalid, 0 Unknown, 8392 Unchecked, 7.3s Time] [2022-03-15 14:24:50,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704930 states. [2022-03-15 14:25:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704930 to 242655. [2022-03-15 14:25:08,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242655 states, 242654 states have (on average 3.8465139663883554) internal successors, (933372), 242654 states have internal predecessors, (933372), 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)