/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/chl-chromosome-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-10 22:20:10,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 22:20:10,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 22:20:10,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 22:20:10,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 22:20:10,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 22:20:10,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 22:20:10,857 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 [2022-02-10 22:20:10,875 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 22:20:10,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 22:20:10,875 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 22:20:10,875 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 22:20:10,876 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 22:20:10,876 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 22:20:10,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 22:20:10,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 22:20:10,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 22:20:10,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 22:20:10,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 22:20:10,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:20:10,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 22:20:10,879 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 22:20:10,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 22:20:10,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 22:20:11,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 22:20:11,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 22:20:11,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 22:20:11,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 22:20:11,083 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 22:20:11,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-02-10 22:20:11,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e0a716c/1cbe308ac7b94d3c96c4f510d087fb2f/FLAG45b9706d0 [2022-02-10 22:20:11,518 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 22:20:11,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-chromosome-symm.wvr.c [2022-02-10 22:20:11,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e0a716c/1cbe308ac7b94d3c96c4f510d087fb2f/FLAG45b9706d0 [2022-02-10 22:20:11,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74e0a716c/1cbe308ac7b94d3c96c4f510d087fb2f [2022-02-10 22:20:11,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 22:20:11,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 22:20:11,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 22:20:11,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 22:20:11,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 22:20:11,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:20:11" (1/1) ... [2022-02-10 22:20:11,965 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7528072c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:11, skipping insertion in model container [2022-02-10 22:20:11,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 10:20:11" (1/1) ... [2022-02-10 22:20:11,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 22:20:11,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 22:20:12,142 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/chl-chromosome-symm.wvr.c[2695,2708] [2022-02-10 22:20:12,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:20:12,154 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 22:20:12,171 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/chl-chromosome-symm.wvr.c[2695,2708] [2022-02-10 22:20:12,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 22:20:12,183 INFO L208 MainTranslator]: Completed translation [2022-02-10 22:20:12,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12 WrapperNode [2022-02-10 22:20:12,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 22:20:12,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 22:20:12,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 22:20:12,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 22:20:12,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,212 INFO L137 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 202 [2022-02-10 22:20:12,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 22:20:12,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 22:20:12,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 22:20:12,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 22:20:12,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 22:20:12,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 22:20:12,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 22:20:12,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 22:20:12,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (1/1) ... [2022-02-10 22:20:12,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 22:20:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:12,297 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) [2022-02-10 22:20:12,356 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 [2022-02-10 22:20:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 22:20:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 22:20:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 22:20:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 22:20:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 22:20:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 22:20:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 22:20:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 22:20:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 22:20:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 22:20:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 22:20:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 22:20:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 22:20:12,382 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 22:20:12,459 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 22:20:12,460 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 22:20:12,749 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 22:20:12,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 22:20:12,756 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-10 22:20:12,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:20:12 BoogieIcfgContainer [2022-02-10 22:20:12,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 22:20:12,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 22:20:12,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 22:20:12,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 22:20:12,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 10:20:11" (1/3) ... [2022-02-10 22:20:12,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa8daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:20:12, skipping insertion in model container [2022-02-10 22:20:12,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 10:20:12" (2/3) ... [2022-02-10 22:20:12,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa8daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:20:12, skipping insertion in model container [2022-02-10 22:20:12,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:20:12" (3/3) ... [2022-02-10 22:20:12,775 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2022-02-10 22:20:12,779 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 22:20:12,779 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 22:20:12,779 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 22:20:12,779 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 22:20:12,813 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,814 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,815 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,816 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,817 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,818 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,819 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,820 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,821 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,822 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,823 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,823 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,823 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,823 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,824 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,825 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,826 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,827 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,828 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,829 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,830 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,831 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,831 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,831 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,831 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,832 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,833 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,834 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,835 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,836 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,837 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,838 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,839 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,840 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,841 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,842 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,843 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,844 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,845 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,846 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,846 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,846 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,846 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,846 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,847 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,848 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,849 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~stop~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,852 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_~i~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,853 WARN L322 ript$VariableManager]: TermVariable |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,855 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ite10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,855 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,855 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~stop~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,856 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,857 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,857 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,857 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,857 WARN L322 ript$VariableManager]: TermVariable |thread2Thread1of1ForFork1_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 22:20:12,860 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 22:20:12,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 22:20:12,895 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 22:20:12,896 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 22:20:12,906 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 256 places, 272 transitions, 560 flow [2022-02-10 22:20:13,274 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:13,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-10 22:20:13,419 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:13,419 INFO L515 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] [2022-02-10 22:20:13,420 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:13,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:13,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1901718774, now seen corresponding path program 1 times [2022-02-10 22:20:13,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:13,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827287934] [2022-02-10 22:20:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:20:13,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:13,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827287934] [2022-02-10 22:20:13,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827287934] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:13,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:13,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 22:20:13,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477409078] [2022-02-10 22:20:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:13,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 22:20:13,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:13,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 22:20:13,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 22:20:13,727 INFO L87 Difference]: Start difference. First operand has 11835 states, 11834 states have (on average 2.8858374176102757) internal successors, (34151), 11834 states have internal predecessors, (34151), 0 states have call successors, (0), 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 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:13,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:13,899 INFO L93 Difference]: Finished difference Result 11835 states and 32410 transitions. [2022-02-10 22:20:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 22:20:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-02-10 22:20:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:13,972 INFO L225 Difference]: With dead ends: 11835 [2022-02-10 22:20:13,972 INFO L226 Difference]: Without dead ends: 10565 [2022-02-10 22:20:13,975 INFO L933 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 [2022-02-10 22:20:13,978 INFO L934 BasicCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:13,979 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:20:14,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10565 states. [2022-02-10 22:20:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10565 to 10565. [2022-02-10 22:20:14,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10565 states, 10564 states have (on average 2.7381673608481636) internal successors, (28926), 10564 states have internal predecessors, (28926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10565 states to 10565 states and 28926 transitions. [2022-02-10 22:20:14,385 INFO L78 Accepts]: Start accepts. Automaton has 10565 states and 28926 transitions. Word has length 147 [2022-02-10 22:20:14,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:14,388 INFO L470 AbstractCegarLoop]: Abstraction has 10565 states and 28926 transitions. [2022-02-10 22:20:14,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 73.5) internal successors, (147), 2 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 10565 states and 28926 transitions. [2022-02-10 22:20:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-02-10 22:20:14,471 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:14,471 INFO L515 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] [2022-02-10 22:20:14,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 22:20:14,472 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:14,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:14,475 INFO L85 PathProgramCache]: Analyzing trace with hash 417763258, now seen corresponding path program 1 times [2022-02-10 22:20:14,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:14,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283848554] [2022-02-10 22:20:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:14,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 22:20:14,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:14,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283848554] [2022-02-10 22:20:14,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283848554] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:14,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:14,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-10 22:20:14,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112857962] [2022-02-10 22:20:14,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:14,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-10 22:20:14,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:14,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-10 22:20:14,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:20:14,664 INFO L87 Difference]: Start difference. First operand 10565 states and 28926 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:14,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:14,844 INFO L93 Difference]: Finished difference Result 10577 states and 28938 transitions. [2022-02-10 22:20:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:20:14,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 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 147 [2022-02-10 22:20:14,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:14,889 INFO L225 Difference]: With dead ends: 10577 [2022-02-10 22:20:14,890 INFO L226 Difference]: Without dead ends: 10577 [2022-02-10 22:20:14,891 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:14,892 INFO L934 BasicCegarLoop]: 211 mSDtfsCounter, 429 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:14,892 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 437 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:20:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10577 states. [2022-02-10 22:20:15,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10577 to 10567. [2022-02-10 22:20:15,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10567 states, 10566 states have (on average 2.7378383494226766) internal successors, (28928), 10566 states have internal predecessors, (28928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10567 states to 10567 states and 28928 transitions. [2022-02-10 22:20:15,197 INFO L78 Accepts]: Start accepts. Automaton has 10567 states and 28928 transitions. Word has length 147 [2022-02-10 22:20:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:15,200 INFO L470 AbstractCegarLoop]: Abstraction has 10567 states and 28928 transitions. [2022-02-10 22:20:15,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 10567 states and 28928 transitions. [2022-02-10 22:20:15,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-02-10 22:20:15,217 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:15,217 INFO L515 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] [2022-02-10 22:20:15,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 22:20:15,217 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:15,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:15,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1831897314, now seen corresponding path program 1 times [2022-02-10 22:20:15,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:15,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694934140] [2022-02-10 22:20:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:15,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:20:15,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:15,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694934140] [2022-02-10 22:20:15,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694934140] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:20:15,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288655498] [2022-02-10 22:20:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:15,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:15,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:15,372 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) [2022-02-10 22:20:15,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-10 22:20:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:15,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-10 22:20:15,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:20:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:20:15,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:20:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-10 22:20:16,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288655498] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:20:16,023 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:20:16,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-02-10 22:20:16,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207811241] [2022-02-10 22:20:16,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:20:16,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-10 22:20:16,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:16,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-10 22:20:16,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:20:16,025 INFO L87 Difference]: Start difference. First operand 10567 states and 28928 transitions. Second operand has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:16,226 INFO L93 Difference]: Finished difference Result 10595 states and 28956 transitions. [2022-02-10 22:20:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:20:16,227 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 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 161 [2022-02-10 22:20:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:16,254 INFO L225 Difference]: With dead ends: 10595 [2022-02-10 22:20:16,254 INFO L226 Difference]: Without dead ends: 10595 [2022-02-10 22:20:16,255 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:20:16,255 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 908 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:16,256 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 1058 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10595 states. [2022-02-10 22:20:16,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10595 to 10595. [2022-02-10 22:20:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10595 states, 10594 states have (on average 2.73324523315084) internal successors, (28956), 10594 states have internal predecessors, (28956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:16,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10595 states to 10595 states and 28956 transitions. [2022-02-10 22:20:16,520 INFO L78 Accepts]: Start accepts. Automaton has 10595 states and 28956 transitions. Word has length 161 [2022-02-10 22:20:16,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:16,520 INFO L470 AbstractCegarLoop]: Abstraction has 10595 states and 28956 transitions. [2022-02-10 22:20:16,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.2) internal successors, (198), 15 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:16,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10595 states and 28956 transitions. [2022-02-10 22:20:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-10 22:20:16,538 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:16,539 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:16,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-10 22:20:16,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:16,758 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:16,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash -634877598, now seen corresponding path program 2 times [2022-02-10 22:20:16,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:16,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481518659] [2022-02-10 22:20:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:16,944 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-10 22:20:16,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:16,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481518659] [2022-02-10 22:20:16,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481518659] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:20:16,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956709121] [2022-02-10 22:20:16,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:20:16,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:16,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:16,960 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) [2022-02-10 22:20:16,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 22:20:17,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-02-10 22:20:17,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:20:17,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:20:17,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:20:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-10 22:20:17,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:20:17,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956709121] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:17,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:20:17,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-10 22:20:17,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034174523] [2022-02-10 22:20:17,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:17,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:20:17,350 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:17,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:20:17,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:20:17,351 INFO L87 Difference]: Start difference. First operand 10595 states and 28956 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:17,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:17,658 INFO L93 Difference]: Finished difference Result 17422 states and 47718 transitions. [2022-02-10 22:20:17,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:20:17,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-02-10 22:20:17,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:17,706 INFO L225 Difference]: With dead ends: 17422 [2022-02-10 22:20:17,706 INFO L226 Difference]: Without dead ends: 17422 [2022-02-10 22:20:17,707 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:20:17,709 INFO L934 BasicCegarLoop]: 465 mSDtfsCounter, 855 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:17,710 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [855 Valid, 1641 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:17,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17422 states. [2022-02-10 22:20:17,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17422 to 11327. [2022-02-10 22:20:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11327 states, 11326 states have (on average 2.7511036553063746) internal successors, (31159), 11326 states have internal predecessors, (31159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:18,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11327 states to 11327 states and 31159 transitions. [2022-02-10 22:20:18,013 INFO L78 Accepts]: Start accepts. Automaton has 11327 states and 31159 transitions. Word has length 189 [2022-02-10 22:20:18,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:18,014 INFO L470 AbstractCegarLoop]: Abstraction has 11327 states and 31159 transitions. [2022-02-10 22:20:18,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:18,015 INFO L276 IsEmpty]: Start isEmpty. Operand 11327 states and 31159 transitions. [2022-02-10 22:20:18,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-10 22:20:18,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:18,032 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:18,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 22:20:18,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-02-10 22:20:18,239 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:18,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:18,239 INFO L85 PathProgramCache]: Analyzing trace with hash 357756226, now seen corresponding path program 1 times [2022-02-10 22:20:18,239 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:18,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37755612] [2022-02-10 22:20:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:18,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:18,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-10 22:20:18,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:18,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37755612] [2022-02-10 22:20:18,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37755612] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:18,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:18,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 22:20:18,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090124927] [2022-02-10 22:20:18,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:18,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 22:20:18,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:18,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 22:20:18,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-10 22:20:18,351 INFO L87 Difference]: Start difference. First operand 11327 states and 31159 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:18,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:18,572 INFO L93 Difference]: Finished difference Result 20301 states and 55455 transitions. [2022-02-10 22:20:18,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-10 22:20:18,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-02-10 22:20:18,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:18,621 INFO L225 Difference]: With dead ends: 20301 [2022-02-10 22:20:18,621 INFO L226 Difference]: Without dead ends: 20118 [2022-02-10 22:20:18,621 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-10 22:20:18,622 INFO L934 BasicCegarLoop]: 333 mSDtfsCounter, 283 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:18,622 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 882 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 22:20:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20118 states. [2022-02-10 22:20:18,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20118 to 11550. [2022-02-10 22:20:18,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 11549 states have (on average 2.7529656247294136) internal successors, (31794), 11549 states have internal predecessors, (31794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:18,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 31794 transitions. [2022-02-10 22:20:18,901 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 31794 transitions. Word has length 189 [2022-02-10 22:20:18,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:18,901 INFO L470 AbstractCegarLoop]: Abstraction has 11550 states and 31794 transitions. [2022-02-10 22:20:18,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 31794 transitions. [2022-02-10 22:20:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-10 22:20:18,920 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:18,920 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:18,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 22:20:18,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:18,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash -687867362, now seen corresponding path program 3 times [2022-02-10 22:20:18,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:18,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940065725] [2022-02-10 22:20:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-10 22:20:19,080 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:19,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940065725] [2022-02-10 22:20:19,080 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940065725] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:20:19,080 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318800799] [2022-02-10 22:20:19,080 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:20:19,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:19,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:19,082 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) [2022-02-10 22:20:19,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 22:20:19,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-02-10 22:20:19,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:20:19,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-10 22:20:19,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:20:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-10 22:20:19,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-10 22:20:19,597 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318800799] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:19,597 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-10 22:20:19,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2022-02-10 22:20:19,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125226615] [2022-02-10 22:20:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:19,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-10 22:20:19,598 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:19,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-10 22:20:19,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:20:19,599 INFO L87 Difference]: Start difference. First operand 11550 states and 31794 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:19,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:19,976 INFO L93 Difference]: Finished difference Result 22700 states and 62199 transitions. [2022-02-10 22:20:19,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:20:19,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 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 189 [2022-02-10 22:20:19,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:20,037 INFO L225 Difference]: With dead ends: 22700 [2022-02-10 22:20:20,037 INFO L226 Difference]: Without dead ends: 22434 [2022-02-10 22:20:20,037 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2022-02-10 22:20:20,038 INFO L934 BasicCegarLoop]: 433 mSDtfsCounter, 715 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:20,038 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [715 Valid, 1753 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22434 states. [2022-02-10 22:20:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22434 to 11566. [2022-02-10 22:20:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11566 states, 11565 states have (on average 2.752961521833117) internal successors, (31838), 11565 states have internal predecessors, (31838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:20,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11566 states to 11566 states and 31838 transitions. [2022-02-10 22:20:20,364 INFO L78 Accepts]: Start accepts. Automaton has 11566 states and 31838 transitions. Word has length 189 [2022-02-10 22:20:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:20,364 INFO L470 AbstractCegarLoop]: Abstraction has 11566 states and 31838 transitions. [2022-02-10 22:20:20,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 6 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:20,365 INFO L276 IsEmpty]: Start isEmpty. Operand 11566 states and 31838 transitions. [2022-02-10 22:20:20,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-10 22:20:20,381 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:20,381 INFO L515 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:20,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 22:20:20,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:20,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:20,599 INFO L85 PathProgramCache]: Analyzing trace with hash -477297476, now seen corresponding path program 4 times [2022-02-10 22:20:20,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:20,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87987577] [2022-02-10 22:20:20,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:20,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:20,682 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-10 22:20:20,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:20,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87987577] [2022-02-10 22:20:20,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87987577] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:20:20,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98432487] [2022-02-10 22:20:20,683 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:20:20,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:20,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:20,684 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) [2022-02-10 22:20:20,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 22:20:20,772 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:20:20,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:20:20,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-10 22:20:20,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:20:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-10 22:20:21,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:20:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-10 22:20:21,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98432487] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:20:21,440 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:20:21,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-02-10 22:20:21,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194299121] [2022-02-10 22:20:21,440 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:20:21,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-10 22:20:21,441 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:21,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-10 22:20:21,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-02-10 22:20:21,442 INFO L87 Difference]: Start difference. First operand 11566 states and 31838 transitions. Second operand has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:21,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:21,724 INFO L93 Difference]: Finished difference Result 11594 states and 31866 transitions. [2022-02-10 22:20:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-10 22:20:21,725 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 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 189 [2022-02-10 22:20:21,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:21,749 INFO L225 Difference]: With dead ends: 11594 [2022-02-10 22:20:21,749 INFO L226 Difference]: Without dead ends: 11594 [2022-02-10 22:20:21,749 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 366 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=370, Invalid=890, Unknown=0, NotChecked=0, Total=1260 [2022-02-10 22:20:21,750 INFO L934 BasicCegarLoop]: 209 mSDtfsCounter, 774 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:21,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [774 Valid, 1729 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:21,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-02-10 22:20:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 11594. [2022-02-10 22:20:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11594 states, 11593 states have (on average 2.7487276804968515) internal successors, (31866), 11593 states have internal predecessors, (31866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11594 states to 11594 states and 31866 transitions. [2022-02-10 22:20:21,974 INFO L78 Accepts]: Start accepts. Automaton has 11594 states and 31866 transitions. Word has length 189 [2022-02-10 22:20:21,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:21,974 INFO L470 AbstractCegarLoop]: Abstraction has 11594 states and 31866 transitions. [2022-02-10 22:20:21,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.272727272727273) internal successors, (226), 22 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 11594 states and 31866 transitions. [2022-02-10 22:20:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:21,990 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:21,991 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:22,007 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-10 22:20:22,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:22,208 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:22,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:22,208 INFO L85 PathProgramCache]: Analyzing trace with hash 669254972, now seen corresponding path program 5 times [2022-02-10 22:20:22,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:22,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448751923] [2022-02-10 22:20:22,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:22,356 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:22,356 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448751923] [2022-02-10 22:20:22,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448751923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:22,356 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:22,356 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:22,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711930751] [2022-02-10 22:20:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:22,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:22,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:22,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:22,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:22,357 INFO L87 Difference]: Start difference. First operand 11594 states and 31866 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:22,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:22,664 INFO L93 Difference]: Finished difference Result 29003 states and 79668 transitions. [2022-02-10 22:20:22,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:20:22,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:22,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:22,732 INFO L225 Difference]: With dead ends: 29003 [2022-02-10 22:20:22,732 INFO L226 Difference]: Without dead ends: 28975 [2022-02-10 22:20:22,733 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:22,733 INFO L934 BasicCegarLoop]: 445 mSDtfsCounter, 807 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:22,733 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 2096 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28975 states. [2022-02-10 22:20:23,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28975 to 11590. [2022-02-10 22:20:23,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11590 states, 11589 states have (on average 2.7487272413495556) internal successors, (31855), 11589 states have internal predecessors, (31855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11590 states to 11590 states and 31855 transitions. [2022-02-10 22:20:23,106 INFO L78 Accepts]: Start accepts. Automaton has 11590 states and 31855 transitions. Word has length 217 [2022-02-10 22:20:23,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:23,106 INFO L470 AbstractCegarLoop]: Abstraction has 11590 states and 31855 transitions. [2022-02-10 22:20:23,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 11590 states and 31855 transitions. [2022-02-10 22:20:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:23,121 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:23,121 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:23,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-10 22:20:23,122 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:23,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:23,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1010713990, now seen corresponding path program 6 times [2022-02-10 22:20:23,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:23,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963616457] [2022-02-10 22:20:23,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:23,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:23,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:23,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963616457] [2022-02-10 22:20:23,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963616457] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:23,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:23,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:23,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223651786] [2022-02-10 22:20:23,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:23,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:23,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:23,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:23,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:23,257 INFO L87 Difference]: Start difference. First operand 11590 states and 31855 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:23,586 INFO L93 Difference]: Finished difference Result 37734 states and 103257 transitions. [2022-02-10 22:20:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:20:23,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:23,670 INFO L225 Difference]: With dead ends: 37734 [2022-02-10 22:20:23,671 INFO L226 Difference]: Without dead ends: 37472 [2022-02-10 22:20:23,671 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-02-10 22:20:23,673 INFO L934 BasicCegarLoop]: 442 mSDtfsCounter, 1063 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:23,673 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1063 Valid, 1910 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37472 states. [2022-02-10 22:20:24,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37472 to 11622. [2022-02-10 22:20:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11622 states, 11621 states have (on average 2.7487307460631616) internal successors, (31943), 11621 states have internal predecessors, (31943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11622 states to 11622 states and 31943 transitions. [2022-02-10 22:20:24,156 INFO L78 Accepts]: Start accepts. Automaton has 11622 states and 31943 transitions. Word has length 217 [2022-02-10 22:20:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:24,156 INFO L470 AbstractCegarLoop]: Abstraction has 11622 states and 31943 transitions. [2022-02-10 22:20:24,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:24,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11622 states and 31943 transitions. [2022-02-10 22:20:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:24,170 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:24,170 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:24,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-10 22:20:24,170 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:24,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:24,171 INFO L85 PathProgramCache]: Analyzing trace with hash -800144104, now seen corresponding path program 7 times [2022-02-10 22:20:24,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:24,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209151771] [2022-02-10 22:20:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:24,308 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:24,308 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209151771] [2022-02-10 22:20:24,308 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209151771] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:24,308 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:24,308 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:24,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114224018] [2022-02-10 22:20:24,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:24,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:24,309 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:24,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:24,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:24,309 INFO L87 Difference]: Start difference. First operand 11622 states and 31943 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:24,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:24,683 INFO L93 Difference]: Finished difference Result 31084 states and 85462 transitions. [2022-02-10 22:20:24,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:20:24,683 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:24,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:24,749 INFO L225 Difference]: With dead ends: 31084 [2022-02-10 22:20:24,749 INFO L226 Difference]: Without dead ends: 31056 [2022-02-10 22:20:24,749 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:24,750 INFO L934 BasicCegarLoop]: 461 mSDtfsCounter, 1012 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:24,750 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1012 Valid, 1480 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31056 states. [2022-02-10 22:20:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31056 to 11638. [2022-02-10 22:20:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11638 states, 11637 states have (on average 2.7494199535962878) internal successors, (31995), 11637 states have internal predecessors, (31995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11638 states to 11638 states and 31995 transitions. [2022-02-10 22:20:25,076 INFO L78 Accepts]: Start accepts. Automaton has 11638 states and 31995 transitions. Word has length 217 [2022-02-10 22:20:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:25,077 INFO L470 AbstractCegarLoop]: Abstraction has 11638 states and 31995 transitions. [2022-02-10 22:20:25,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11638 states and 31995 transitions. [2022-02-10 22:20:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:25,090 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:25,091 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:25,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-10 22:20:25,091 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:25,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:25,091 INFO L85 PathProgramCache]: Analyzing trace with hash 917376408, now seen corresponding path program 8 times [2022-02-10 22:20:25,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:25,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575552366] [2022-02-10 22:20:25,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:25,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:25,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:25,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575552366] [2022-02-10 22:20:25,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575552366] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:25,199 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:25,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:25,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775114586] [2022-02-10 22:20:25,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:25,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:25,200 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:25,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:25,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:25,201 INFO L87 Difference]: Start difference. First operand 11638 states and 31995 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:25,422 INFO L93 Difference]: Finished difference Result 27078 states and 74369 transitions. [2022-02-10 22:20:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:20:25,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:25,477 INFO L225 Difference]: With dead ends: 27078 [2022-02-10 22:20:25,477 INFO L226 Difference]: Without dead ends: 26812 [2022-02-10 22:20:25,478 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:25,478 INFO L934 BasicCegarLoop]: 465 mSDtfsCounter, 839 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:25,478 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 1326 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26812 states. [2022-02-10 22:20:25,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26812 to 11622. [2022-02-10 22:20:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11622 states, 11621 states have (on average 2.749074950520609) internal successors, (31947), 11621 states have internal predecessors, (31947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11622 states to 11622 states and 31947 transitions. [2022-02-10 22:20:25,779 INFO L78 Accepts]: Start accepts. Automaton has 11622 states and 31947 transitions. Word has length 217 [2022-02-10 22:20:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:25,780 INFO L470 AbstractCegarLoop]: Abstraction has 11622 states and 31947 transitions. [2022-02-10 22:20:25,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 11622 states and 31947 transitions. [2022-02-10 22:20:25,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:25,794 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:25,795 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:25,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-10 22:20:25,823 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:25,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:25,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1697941182, now seen corresponding path program 9 times [2022-02-10 22:20:25,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:25,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068873769] [2022-02-10 22:20:25,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:25,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:25,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:25,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068873769] [2022-02-10 22:20:25,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068873769] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:25,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:25,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:25,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159201196] [2022-02-10 22:20:25,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:25,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:25,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:25,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:25,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:25,934 INFO L87 Difference]: Start difference. First operand 11622 states and 31947 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:26,162 INFO L93 Difference]: Finished difference Result 28949 states and 79516 transitions. [2022-02-10 22:20:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:26,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:26,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:26,220 INFO L225 Difference]: With dead ends: 28949 [2022-02-10 22:20:26,221 INFO L226 Difference]: Without dead ends: 28869 [2022-02-10 22:20:26,221 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:26,221 INFO L934 BasicCegarLoop]: 396 mSDtfsCounter, 481 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:26,221 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 1606 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28869 states. [2022-02-10 22:20:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28869 to 11614. [2022-02-10 22:20:26,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11614 states, 11613 states have (on average 2.7487298716955135) internal successors, (31921), 11613 states have internal predecessors, (31921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11614 states to 11614 states and 31921 transitions. [2022-02-10 22:20:26,537 INFO L78 Accepts]: Start accepts. Automaton has 11614 states and 31921 transitions. Word has length 217 [2022-02-10 22:20:26,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:26,537 INFO L470 AbstractCegarLoop]: Abstraction has 11614 states and 31921 transitions. [2022-02-10 22:20:26,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:26,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11614 states and 31921 transitions. [2022-02-10 22:20:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-02-10 22:20:26,550 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:26,550 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:26,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-10 22:20:26,551 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:26,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1407598842, now seen corresponding path program 10 times [2022-02-10 22:20:26,551 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:26,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540049076] [2022-02-10 22:20:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:26,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:26,657 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:26,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:26,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540049076] [2022-02-10 22:20:26,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540049076] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:26,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:26,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:26,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727921560] [2022-02-10 22:20:26,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:26,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:26,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:26,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:26,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:26,659 INFO L87 Difference]: Start difference. First operand 11614 states and 31921 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:26,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:26,839 INFO L93 Difference]: Finished difference Result 19298 states and 52937 transitions. [2022-02-10 22:20:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-10 22:20:26,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 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 217 [2022-02-10 22:20:26,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:26,874 INFO L225 Difference]: With dead ends: 19298 [2022-02-10 22:20:26,874 INFO L226 Difference]: Without dead ends: 19298 [2022-02-10 22:20:26,874 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:20:26,875 INFO L934 BasicCegarLoop]: 575 mSDtfsCounter, 646 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:26,875 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [646 Valid, 1665 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:26,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19298 states. [2022-02-10 22:20:27,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19298 to 12182. [2022-02-10 22:20:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12182 states, 12181 states have (on average 2.7501026188326083) internal successors, (33499), 12181 states have internal predecessors, (33499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12182 states to 12182 states and 33499 transitions. [2022-02-10 22:20:27,223 INFO L78 Accepts]: Start accepts. Automaton has 12182 states and 33499 transitions. Word has length 217 [2022-02-10 22:20:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:27,223 INFO L470 AbstractCegarLoop]: Abstraction has 12182 states and 33499 transitions. [2022-02-10 22:20:27,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:27,223 INFO L276 IsEmpty]: Start isEmpty. Operand 12182 states and 33499 transitions. [2022-02-10 22:20:27,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:27,236 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:27,237 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:27,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-10 22:20:27,237 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:27,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:27,237 INFO L85 PathProgramCache]: Analyzing trace with hash 443179207, now seen corresponding path program 1 times [2022-02-10 22:20:27,237 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:27,237 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117518813] [2022-02-10 22:20:27,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:27,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:27,322 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:27,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:27,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117518813] [2022-02-10 22:20:27,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117518813] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:27,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:27,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:27,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297801392] [2022-02-10 22:20:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:27,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:27,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:27,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:27,324 INFO L87 Difference]: Start difference. First operand 12182 states and 33499 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:27,543 INFO L93 Difference]: Finished difference Result 28065 states and 77161 transitions. [2022-02-10 22:20:27,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:20:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:27,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:27,603 INFO L225 Difference]: With dead ends: 28065 [2022-02-10 22:20:27,603 INFO L226 Difference]: Without dead ends: 27960 [2022-02-10 22:20:27,603 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:20:27,604 INFO L934 BasicCegarLoop]: 439 mSDtfsCounter, 464 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:27,604 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1811 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27960 states. [2022-02-10 22:20:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27960 to 12226. [2022-02-10 22:20:27,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12226 states, 12225 states have (on average 2.7516564417177913) internal successors, (33639), 12225 states have internal predecessors, (33639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:27,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12226 states to 12226 states and 33639 transitions. [2022-02-10 22:20:27,931 INFO L78 Accepts]: Start accepts. Automaton has 12226 states and 33639 transitions. Word has length 250 [2022-02-10 22:20:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:27,931 INFO L470 AbstractCegarLoop]: Abstraction has 12226 states and 33639 transitions. [2022-02-10 22:20:27,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 12226 states and 33639 transitions. [2022-02-10 22:20:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:27,947 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:27,948 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:27,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-10 22:20:27,948 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash -789159033, now seen corresponding path program 2 times [2022-02-10 22:20:27,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:27,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405325040] [2022-02-10 22:20:27,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:27,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:28,090 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:28,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:28,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405325040] [2022-02-10 22:20:28,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405325040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:28,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:28,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:28,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21431308] [2022-02-10 22:20:28,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:28,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:28,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:28,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:28,092 INFO L87 Difference]: Start difference. First operand 12226 states and 33639 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:28,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:28,291 INFO L93 Difference]: Finished difference Result 22681 states and 62170 transitions. [2022-02-10 22:20:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:20:28,291 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:28,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:28,332 INFO L225 Difference]: With dead ends: 22681 [2022-02-10 22:20:28,333 INFO L226 Difference]: Without dead ends: 22681 [2022-02-10 22:20:28,333 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-02-10 22:20:28,333 INFO L934 BasicCegarLoop]: 363 mSDtfsCounter, 604 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:28,333 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [604 Valid, 1491 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22681 states. [2022-02-10 22:20:28,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22681 to 12418. [2022-02-10 22:20:28,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12418 states, 12417 states have (on average 2.7525972457115246) internal successors, (34179), 12417 states have internal predecessors, (34179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:28,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12418 states to 12418 states and 34179 transitions. [2022-02-10 22:20:28,623 INFO L78 Accepts]: Start accepts. Automaton has 12418 states and 34179 transitions. Word has length 250 [2022-02-10 22:20:28,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:28,623 INFO L470 AbstractCegarLoop]: Abstraction has 12418 states and 34179 transitions. [2022-02-10 22:20:28,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand 12418 states and 34179 transitions. [2022-02-10 22:20:28,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:28,644 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:28,644 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:28,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-10 22:20:28,644 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:28,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash -683732655, now seen corresponding path program 3 times [2022-02-10 22:20:28,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:28,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619388234] [2022-02-10 22:20:28,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:28,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:28,735 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:28,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:28,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619388234] [2022-02-10 22:20:28,735 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619388234] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:28,735 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:28,735 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:28,735 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056626829] [2022-02-10 22:20:28,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:28,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:28,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:28,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:28,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:28,736 INFO L87 Difference]: Start difference. First operand 12418 states and 34179 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:29,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:29,004 INFO L93 Difference]: Finished difference Result 28469 states and 78143 transitions. [2022-02-10 22:20:29,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:29,060 INFO L225 Difference]: With dead ends: 28469 [2022-02-10 22:20:29,061 INFO L226 Difference]: Without dead ends: 28434 [2022-02-10 22:20:29,061 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:29,061 INFO L934 BasicCegarLoop]: 411 mSDtfsCounter, 634 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:29,061 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [634 Valid, 1485 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:29,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28434 states. [2022-02-10 22:20:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28434 to 12418. [2022-02-10 22:20:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12418 states, 12417 states have (on average 2.7519529677055647) internal successors, (34171), 12417 states have internal predecessors, (34171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12418 states to 12418 states and 34171 transitions. [2022-02-10 22:20:29,406 INFO L78 Accepts]: Start accepts. Automaton has 12418 states and 34171 transitions. Word has length 250 [2022-02-10 22:20:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:29,407 INFO L470 AbstractCegarLoop]: Abstraction has 12418 states and 34171 transitions. [2022-02-10 22:20:29,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:29,407 INFO L276 IsEmpty]: Start isEmpty. Operand 12418 states and 34171 transitions. [2022-02-10 22:20:29,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:29,426 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:29,427 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:29,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-10 22:20:29,427 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:29,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1442601977, now seen corresponding path program 4 times [2022-02-10 22:20:29,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:29,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382051282] [2022-02-10 22:20:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:29,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:29,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382051282] [2022-02-10 22:20:29,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382051282] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:29,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:29,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:20:29,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211292865] [2022-02-10 22:20:29,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:29,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:20:29,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:29,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:20:29,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:20:29,509 INFO L87 Difference]: Start difference. First operand 12418 states and 34171 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:29,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:29,693 INFO L93 Difference]: Finished difference Result 20695 states and 56797 transitions. [2022-02-10 22:20:29,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:20:29,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:29,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:29,732 INFO L225 Difference]: With dead ends: 20695 [2022-02-10 22:20:29,732 INFO L226 Difference]: Without dead ends: 20498 [2022-02-10 22:20:29,733 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:29,733 INFO L934 BasicCegarLoop]: 415 mSDtfsCounter, 316 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:29,733 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 2103 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:29,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20498 states. [2022-02-10 22:20:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20498 to 12600. [2022-02-10 22:20:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12600 states, 12599 states have (on average 2.76593380427018) internal successors, (34848), 12599 states have internal predecessors, (34848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:30,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12600 states to 12600 states and 34848 transitions. [2022-02-10 22:20:30,072 INFO L78 Accepts]: Start accepts. Automaton has 12600 states and 34848 transitions. Word has length 250 [2022-02-10 22:20:30,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:30,072 INFO L470 AbstractCegarLoop]: Abstraction has 12600 states and 34848 transitions. [2022-02-10 22:20:30,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:30,072 INFO L276 IsEmpty]: Start isEmpty. Operand 12600 states and 34848 transitions. [2022-02-10 22:20:30,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:30,094 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:30,094 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:30,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-10 22:20:30,094 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash 75588711, now seen corresponding path program 5 times [2022-02-10 22:20:30,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:30,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203005571] [2022-02-10 22:20:30,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:30,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:30,182 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:30,182 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203005571] [2022-02-10 22:20:30,182 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203005571] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:30,182 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:30,182 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:30,182 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412511288] [2022-02-10 22:20:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:30,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:30,183 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:30,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:30,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:30,183 INFO L87 Difference]: Start difference. First operand 12600 states and 34848 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:30,431 INFO L93 Difference]: Finished difference Result 35875 states and 98435 transitions. [2022-02-10 22:20:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:30,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:30,503 INFO L225 Difference]: With dead ends: 35875 [2022-02-10 22:20:30,504 INFO L226 Difference]: Without dead ends: 35782 [2022-02-10 22:20:30,504 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:30,504 INFO L934 BasicCegarLoop]: 418 mSDtfsCounter, 456 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:30,504 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [456 Valid, 1739 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35782 states. [2022-02-10 22:20:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35782 to 12624. [2022-02-10 22:20:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12624 states, 12623 states have (on average 2.7659035094668463) internal successors, (34914), 12623 states have internal predecessors, (34914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12624 states to 12624 states and 34914 transitions. [2022-02-10 22:20:30,945 INFO L78 Accepts]: Start accepts. Automaton has 12624 states and 34914 transitions. Word has length 250 [2022-02-10 22:20:30,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:30,945 INFO L470 AbstractCegarLoop]: Abstraction has 12624 states and 34914 transitions. [2022-02-10 22:20:30,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:30,946 INFO L276 IsEmpty]: Start isEmpty. Operand 12624 states and 34914 transitions. [2022-02-10 22:20:30,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:30,965 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:30,965 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:30,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-10 22:20:30,965 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:30,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:30,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1156749529, now seen corresponding path program 6 times [2022-02-10 22:20:30,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:30,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95952177] [2022-02-10 22:20:30,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:30,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:30,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:31,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:31,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95952177] [2022-02-10 22:20:31,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95952177] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:31,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:31,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:31,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433137164] [2022-02-10 22:20:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:31,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:31,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:31,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:31,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:31,079 INFO L87 Difference]: Start difference. First operand 12624 states and 34914 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:31,384 INFO L93 Difference]: Finished difference Result 42900 states and 117436 transitions. [2022-02-10 22:20:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:31,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:31,468 INFO L225 Difference]: With dead ends: 42900 [2022-02-10 22:20:31,468 INFO L226 Difference]: Without dead ends: 42716 [2022-02-10 22:20:31,468 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:31,469 INFO L934 BasicCegarLoop]: 450 mSDtfsCounter, 790 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:31,469 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 1520 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:31,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42716 states. [2022-02-10 22:20:31,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42716 to 12632. [2022-02-10 22:20:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12632 states, 12631 states have (on average 2.765893436782519) internal successors, (34936), 12631 states have internal predecessors, (34936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:31,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12632 states to 12632 states and 34936 transitions. [2022-02-10 22:20:31,962 INFO L78 Accepts]: Start accepts. Automaton has 12632 states and 34936 transitions. Word has length 250 [2022-02-10 22:20:31,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:31,962 INFO L470 AbstractCegarLoop]: Abstraction has 12632 states and 34936 transitions. [2022-02-10 22:20:31,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12632 states and 34936 transitions. [2022-02-10 22:20:31,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:31,983 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:31,983 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:31,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-10 22:20:31,983 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:31,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:31,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1051323151, now seen corresponding path program 7 times [2022-02-10 22:20:31,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:31,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336201239] [2022-02-10 22:20:31,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:31,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:32,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:32,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336201239] [2022-02-10 22:20:32,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336201239] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:32,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:32,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:32,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348113335] [2022-02-10 22:20:32,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:32,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:32,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:32,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:32,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:32,079 INFO L87 Difference]: Start difference. First operand 12632 states and 34936 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:32,368 INFO L93 Difference]: Finished difference Result 36925 states and 101331 transitions. [2022-02-10 22:20:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:20:32,368 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:32,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:32,448 INFO L225 Difference]: With dead ends: 36925 [2022-02-10 22:20:32,448 INFO L226 Difference]: Without dead ends: 36894 [2022-02-10 22:20:32,448 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:20:32,448 INFO L934 BasicCegarLoop]: 407 mSDtfsCounter, 596 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:32,449 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 1850 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:32,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36894 states. [2022-02-10 22:20:32,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36894 to 12616. [2022-02-10 22:20:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12616 states, 12615 states have (on average 2.7659135949266744) internal successors, (34892), 12615 states have internal predecessors, (34892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:32,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12616 states to 12616 states and 34892 transitions. [2022-02-10 22:20:32,841 INFO L78 Accepts]: Start accepts. Automaton has 12616 states and 34892 transitions. Word has length 250 [2022-02-10 22:20:32,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:32,841 INFO L470 AbstractCegarLoop]: Abstraction has 12616 states and 34892 transitions. [2022-02-10 22:20:32,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:32,842 INFO L276 IsEmpty]: Start isEmpty. Operand 12616 states and 34892 transitions. [2022-02-10 22:20:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:32,860 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:32,860 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:32,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-10 22:20:32,860 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:32,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash -850633543, now seen corresponding path program 8 times [2022-02-10 22:20:32,860 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:32,861 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061233903] [2022-02-10 22:20:32,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:32,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:32,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:32,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:32,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061233903] [2022-02-10 22:20:32,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061233903] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:32,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:32,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:32,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361725103] [2022-02-10 22:20:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:32,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:32,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:32,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:32,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:32,948 INFO L87 Difference]: Start difference. First operand 12616 states and 34892 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:33,153 INFO L93 Difference]: Finished difference Result 29576 states and 80795 transitions. [2022-02-10 22:20:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:33,210 INFO L225 Difference]: With dead ends: 29576 [2022-02-10 22:20:33,211 INFO L226 Difference]: Without dead ends: 29392 [2022-02-10 22:20:33,211 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:33,211 INFO L934 BasicCegarLoop]: 398 mSDtfsCounter, 739 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:33,211 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 1503 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:33,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29392 states. [2022-02-10 22:20:33,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29392 to 12632. [2022-02-10 22:20:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12632 states, 12631 states have (on average 2.765893436782519) internal successors, (34936), 12631 states have internal predecessors, (34936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:33,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12632 states to 12632 states and 34936 transitions. [2022-02-10 22:20:33,549 INFO L78 Accepts]: Start accepts. Automaton has 12632 states and 34936 transitions. Word has length 250 [2022-02-10 22:20:33,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:33,549 INFO L470 AbstractCegarLoop]: Abstraction has 12632 states and 34936 transitions. [2022-02-10 22:20:33,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 12632 states and 34936 transitions. [2022-02-10 22:20:33,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:33,569 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:33,570 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:33,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-10 22:20:33,570 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:33,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:33,570 INFO L85 PathProgramCache]: Analyzing trace with hash 389047183, now seen corresponding path program 9 times [2022-02-10 22:20:33,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:33,571 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481332574] [2022-02-10 22:20:33,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:33,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:33,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481332574] [2022-02-10 22:20:33,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481332574] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:33,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:33,654 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:33,654 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563523610] [2022-02-10 22:20:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:33,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:33,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:33,655 INFO L87 Difference]: Start difference. First operand 12632 states and 34936 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:33,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:33,988 INFO L93 Difference]: Finished difference Result 36879 states and 101203 transitions. [2022-02-10 22:20:33,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:20:34,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:34,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:34,174 INFO L225 Difference]: With dead ends: 36879 [2022-02-10 22:20:34,174 INFO L226 Difference]: Without dead ends: 36848 [2022-02-10 22:20:34,174 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:34,175 INFO L934 BasicCegarLoop]: 402 mSDtfsCounter, 797 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:34,176 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [797 Valid, 1705 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:34,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36848 states. [2022-02-10 22:20:34,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36848 to 12624. [2022-02-10 22:20:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12624 states, 12623 states have (on average 2.7659035094668463) internal successors, (34914), 12623 states have internal predecessors, (34914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12624 states to 12624 states and 34914 transitions. [2022-02-10 22:20:34,497 INFO L78 Accepts]: Start accepts. Automaton has 12624 states and 34914 transitions. Word has length 250 [2022-02-10 22:20:34,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:34,497 INFO L470 AbstractCegarLoop]: Abstraction has 12624 states and 34914 transitions. [2022-02-10 22:20:34,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 12624 states and 34914 transitions. [2022-02-10 22:20:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:34,515 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:34,516 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:34,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-10 22:20:34,516 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:34,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash -81936489, now seen corresponding path program 10 times [2022-02-10 22:20:34,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:34,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333302526] [2022-02-10 22:20:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:34,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:34,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:34,611 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:34,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:34,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333302526] [2022-02-10 22:20:34,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333302526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:34,612 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:34,612 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:34,612 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626129564] [2022-02-10 22:20:34,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:34,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:34,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:34,613 INFO L87 Difference]: Start difference. First operand 12624 states and 34914 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:34,829 INFO L93 Difference]: Finished difference Result 29087 states and 79459 transitions. [2022-02-10 22:20:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:34,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:34,879 INFO L225 Difference]: With dead ends: 29087 [2022-02-10 22:20:34,880 INFO L226 Difference]: Without dead ends: 28994 [2022-02-10 22:20:34,880 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:34,880 INFO L934 BasicCegarLoop]: 454 mSDtfsCounter, 470 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:34,880 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [470 Valid, 2016 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:34,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28994 states. [2022-02-10 22:20:35,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28994 to 12616. [2022-02-10 22:20:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12616 states, 12615 states have (on average 2.7652794292508918) internal successors, (34884), 12615 states have internal predecessors, (34884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:35,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12616 states to 12616 states and 34884 transitions. [2022-02-10 22:20:35,209 INFO L78 Accepts]: Start accepts. Automaton has 12616 states and 34884 transitions. Word has length 250 [2022-02-10 22:20:35,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:35,209 INFO L470 AbstractCegarLoop]: Abstraction has 12616 states and 34884 transitions. [2022-02-10 22:20:35,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:35,210 INFO L276 IsEmpty]: Start isEmpty. Operand 12616 states and 34884 transitions. [2022-02-10 22:20:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:35,230 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:35,231 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:35,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-10 22:20:35,231 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:35,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1314274729, now seen corresponding path program 11 times [2022-02-10 22:20:35,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:35,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464885682] [2022-02-10 22:20:35,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:35,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:35,359 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:35,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:35,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464885682] [2022-02-10 22:20:35,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464885682] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:35,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:35,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:35,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695338848] [2022-02-10 22:20:35,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:35,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:35,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:35,361 INFO L87 Difference]: Start difference. First operand 12616 states and 34884 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:35,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:35,635 INFO L93 Difference]: Finished difference Result 37622 states and 102510 transitions. [2022-02-10 22:20:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:20:35,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:35,708 INFO L225 Difference]: With dead ends: 37622 [2022-02-10 22:20:35,708 INFO L226 Difference]: Without dead ends: 37398 [2022-02-10 22:20:35,709 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:35,709 INFO L934 BasicCegarLoop]: 497 mSDtfsCounter, 978 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:35,709 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 1558 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:35,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37398 states. [2022-02-10 22:20:36,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37398 to 12624. [2022-02-10 22:20:36,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12624 states, 12623 states have (on average 2.7652697457022897) internal successors, (34906), 12623 states have internal predecessors, (34906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:36,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12624 states to 12624 states and 34906 transitions. [2022-02-10 22:20:36,111 INFO L78 Accepts]: Start accepts. Automaton has 12624 states and 34906 transitions. Word has length 250 [2022-02-10 22:20:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:36,111 INFO L470 AbstractCegarLoop]: Abstraction has 12624 states and 34906 transitions. [2022-02-10 22:20:36,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:36,112 INFO L276 IsEmpty]: Start isEmpty. Operand 12624 states and 34906 transitions. [2022-02-10 22:20:36,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:36,134 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:36,134 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:36,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-10 22:20:36,134 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:36,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:36,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1208848351, now seen corresponding path program 12 times [2022-02-10 22:20:36,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:36,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26358639] [2022-02-10 22:20:36,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:36,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:36,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:36,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:36,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26358639] [2022-02-10 22:20:36,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26358639] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:36,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:36,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:36,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492811118] [2022-02-10 22:20:36,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:36,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:36,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:36,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:36,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:36,263 INFO L87 Difference]: Start difference. First operand 12624 states and 34906 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:36,583 INFO L93 Difference]: Finished difference Result 30137 states and 82355 transitions. [2022-02-10 22:20:36,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-10 22:20:36,584 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:36,643 INFO L225 Difference]: With dead ends: 30137 [2022-02-10 22:20:36,643 INFO L226 Difference]: Without dead ends: 30106 [2022-02-10 22:20:36,643 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-02-10 22:20:36,644 INFO L934 BasicCegarLoop]: 441 mSDtfsCounter, 679 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:36,644 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [679 Valid, 2229 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:36,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30106 states. [2022-02-10 22:20:36,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30106 to 12608. [2022-02-10 22:20:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12608 states, 12607 states have (on average 2.765289125089236) internal successors, (34862), 12607 states have internal predecessors, (34862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12608 states to 12608 states and 34862 transitions. [2022-02-10 22:20:36,987 INFO L78 Accepts]: Start accepts. Automaton has 12608 states and 34862 transitions. Word has length 250 [2022-02-10 22:20:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:36,987 INFO L470 AbstractCegarLoop]: Abstraction has 12608 states and 34862 transitions. [2022-02-10 22:20:36,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:36,987 INFO L276 IsEmpty]: Start isEmpty. Operand 12608 states and 34862 transitions. [2022-02-10 22:20:37,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:37,007 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:37,007 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:37,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-10 22:20:37,007 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:37,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:37,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1008158743, now seen corresponding path program 13 times [2022-02-10 22:20:37,008 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:37,008 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970718789] [2022-02-10 22:20:37,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:37,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:37,096 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:37,096 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:37,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970718789] [2022-02-10 22:20:37,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970718789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:37,097 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:37,097 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:37,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925036343] [2022-02-10 22:20:37,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:37,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:37,097 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:37,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:37,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:37,098 INFO L87 Difference]: Start difference. First operand 12608 states and 34862 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:37,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:37,296 INFO L93 Difference]: Finished difference Result 26537 states and 72510 transitions. [2022-02-10 22:20:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-10 22:20:37,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:37,351 INFO L225 Difference]: With dead ends: 26537 [2022-02-10 22:20:37,351 INFO L226 Difference]: Without dead ends: 26313 [2022-02-10 22:20:37,351 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:37,352 INFO L934 BasicCegarLoop]: 474 mSDtfsCounter, 659 mSDsluCounter, 941 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:37,352 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [659 Valid, 1400 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:37,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26313 states. [2022-02-10 22:20:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26313 to 12624. [2022-02-10 22:20:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12624 states, 12623 states have (on average 2.7652697457022897) internal successors, (34906), 12623 states have internal predecessors, (34906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12624 states to 12624 states and 34906 transitions. [2022-02-10 22:20:37,643 INFO L78 Accepts]: Start accepts. Automaton has 12624 states and 34906 transitions. Word has length 250 [2022-02-10 22:20:37,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:37,644 INFO L470 AbstractCegarLoop]: Abstraction has 12624 states and 34906 transitions. [2022-02-10 22:20:37,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 12624 states and 34906 transitions. [2022-02-10 22:20:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:37,663 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:37,663 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:37,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-10 22:20:37,663 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:37,664 INFO L85 PathProgramCache]: Analyzing trace with hash 231521983, now seen corresponding path program 14 times [2022-02-10 22:20:37,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:37,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145342091] [2022-02-10 22:20:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:37,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:37,747 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:37,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145342091] [2022-02-10 22:20:37,748 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145342091] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:37,748 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:37,748 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:37,748 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580743070] [2022-02-10 22:20:37,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:37,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:37,748 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:37,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:37,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:37,749 INFO L87 Difference]: Start difference. First operand 12624 states and 34906 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:38,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:38,042 INFO L93 Difference]: Finished difference Result 28995 states and 79177 transitions. [2022-02-10 22:20:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-10 22:20:38,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:38,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:38,103 INFO L225 Difference]: With dead ends: 28995 [2022-02-10 22:20:38,103 INFO L226 Difference]: Without dead ends: 28964 [2022-02-10 22:20:38,104 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:38,104 INFO L934 BasicCegarLoop]: 433 mSDtfsCounter, 847 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:38,104 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 1921 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28964 states. [2022-02-10 22:20:38,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28964 to 12592. [2022-02-10 22:20:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12592 states, 12591 states have (on average 2.765308553728854) internal successors, (34818), 12591 states have internal predecessors, (34818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12592 states to 12592 states and 34818 transitions. [2022-02-10 22:20:38,476 INFO L78 Accepts]: Start accepts. Automaton has 12592 states and 34818 transitions. Word has length 250 [2022-02-10 22:20:38,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:38,476 INFO L470 AbstractCegarLoop]: Abstraction has 12592 states and 34818 transitions. [2022-02-10 22:20:38,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:38,476 INFO L276 IsEmpty]: Start isEmpty. Operand 12592 states and 34818 transitions. [2022-02-10 22:20:38,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:38,494 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:38,495 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:38,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-10 22:20:38,495 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:38,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2003647307, now seen corresponding path program 15 times [2022-02-10 22:20:38,495 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:38,495 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347058627] [2022-02-10 22:20:38,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:38,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:38,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:38,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347058627] [2022-02-10 22:20:38,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347058627] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:38,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:38,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:38,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721892682] [2022-02-10 22:20:38,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:38,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:38,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:38,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:38,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:38,579 INFO L87 Difference]: Start difference. First operand 12592 states and 34818 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:38,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:38,845 INFO L93 Difference]: Finished difference Result 25323 states and 69019 transitions. [2022-02-10 22:20:38,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-10 22:20:38,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:38,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:38,891 INFO L225 Difference]: With dead ends: 25323 [2022-02-10 22:20:38,891 INFO L226 Difference]: Without dead ends: 25095 [2022-02-10 22:20:38,891 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-10 22:20:38,892 INFO L934 BasicCegarLoop]: 531 mSDtfsCounter, 790 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2048 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:38,892 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [790 Valid, 2048 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:38,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25095 states. [2022-02-10 22:20:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25095 to 11856. [2022-02-10 22:20:39,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11856 states, 11855 states have (on average 2.7490510333192746) internal successors, (32590), 11855 states have internal predecessors, (32590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11856 states to 11856 states and 32590 transitions. [2022-02-10 22:20:39,170 INFO L78 Accepts]: Start accepts. Automaton has 11856 states and 32590 transitions. Word has length 250 [2022-02-10 22:20:39,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:39,170 INFO L470 AbstractCegarLoop]: Abstraction has 11856 states and 32590 transitions. [2022-02-10 22:20:39,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 11856 states and 32590 transitions. [2022-02-10 22:20:39,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:39,185 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:39,185 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:39,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-10 22:20:39,185 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:39,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:39,186 INFO L85 PathProgramCache]: Analyzing trace with hash 860905151, now seen corresponding path program 16 times [2022-02-10 22:20:39,186 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:39,186 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349965789] [2022-02-10 22:20:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:39,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:39,278 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:39,278 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:39,278 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349965789] [2022-02-10 22:20:39,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349965789] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:39,279 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:39,279 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:39,279 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657419660] [2022-02-10 22:20:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:39,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:39,279 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:39,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:39,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:39,280 INFO L87 Difference]: Start difference. First operand 11856 states and 32590 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:39,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:39,546 INFO L93 Difference]: Finished difference Result 27915 states and 76096 transitions. [2022-02-10 22:20:39,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:20:39,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:39,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:39,600 INFO L225 Difference]: With dead ends: 27915 [2022-02-10 22:20:39,600 INFO L226 Difference]: Without dead ends: 27884 [2022-02-10 22:20:39,600 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:39,601 INFO L934 BasicCegarLoop]: 482 mSDtfsCounter, 730 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:39,601 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 1705 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:39,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27884 states. [2022-02-10 22:20:39,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27884 to 11840. [2022-02-10 22:20:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11840 states, 11839 states have (on average 2.7490497508235494) internal successors, (32546), 11839 states have internal predecessors, (32546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 32546 transitions. [2022-02-10 22:20:39,897 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 32546 transitions. Word has length 250 [2022-02-10 22:20:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:39,897 INFO L470 AbstractCegarLoop]: Abstraction has 11840 states and 32546 transitions. [2022-02-10 22:20:39,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 32546 transitions. [2022-02-10 22:20:39,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:39,913 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:39,913 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:39,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-10 22:20:39,913 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:39,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:39,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1358345733, now seen corresponding path program 1 times [2022-02-10 22:20:39,914 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:39,914 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772345159] [2022-02-10 22:20:39,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:39,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:39,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:39,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772345159] [2022-02-10 22:20:39,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772345159] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:39,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:39,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:39,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885494319] [2022-02-10 22:20:39,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:40,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:40,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:40,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:40,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:40,000 INFO L87 Difference]: Start difference. First operand 11840 states and 32546 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:40,296 INFO L93 Difference]: Finished difference Result 42287 states and 115591 transitions. [2022-02-10 22:20:40,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:20:40,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:40,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:40,374 INFO L225 Difference]: With dead ends: 42287 [2022-02-10 22:20:40,374 INFO L226 Difference]: Without dead ends: 42100 [2022-02-10 22:20:40,374 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-02-10 22:20:40,375 INFO L934 BasicCegarLoop]: 431 mSDtfsCounter, 1145 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:40,375 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 1443 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:40,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42100 states. [2022-02-10 22:20:40,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42100 to 11848. [2022-02-10 22:20:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11848 states, 11847 states have (on average 2.7490503925044316) internal successors, (32568), 11847 states have internal predecessors, (32568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:40,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11848 states to 11848 states and 32568 transitions. [2022-02-10 22:20:40,787 INFO L78 Accepts]: Start accepts. Automaton has 11848 states and 32568 transitions. Word has length 250 [2022-02-10 22:20:40,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:40,787 INFO L470 AbstractCegarLoop]: Abstraction has 11848 states and 32568 transitions. [2022-02-10 22:20:40,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:40,787 INFO L276 IsEmpty]: Start isEmpty. Operand 11848 states and 32568 transitions. [2022-02-10 22:20:40,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:40,802 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:40,803 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:40,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-10 22:20:40,803 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:40,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:40,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1051855065, now seen corresponding path program 2 times [2022-02-10 22:20:40,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:40,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586939441] [2022-02-10 22:20:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:40,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:40,905 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:40,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586939441] [2022-02-10 22:20:40,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586939441] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:40,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:40,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:40,906 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451651054] [2022-02-10 22:20:40,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:40,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:40,906 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:40,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:40,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:40,907 INFO L87 Difference]: Start difference. First operand 11848 states and 32568 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:41,246 INFO L93 Difference]: Finished difference Result 35819 states and 98030 transitions. [2022-02-10 22:20:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-10 22:20:41,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:41,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:41,320 INFO L225 Difference]: With dead ends: 35819 [2022-02-10 22:20:41,320 INFO L226 Difference]: Without dead ends: 35767 [2022-02-10 22:20:41,321 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:20:41,321 INFO L934 BasicCegarLoop]: 433 mSDtfsCounter, 882 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2043 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:41,321 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 2043 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:41,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35767 states. [2022-02-10 22:20:41,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35767 to 11840. [2022-02-10 22:20:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11840 states, 11839 states have (on average 2.7487118844497003) internal successors, (32542), 11839 states have internal predecessors, (32542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11840 states to 11840 states and 32542 transitions. [2022-02-10 22:20:41,682 INFO L78 Accepts]: Start accepts. Automaton has 11840 states and 32542 transitions. Word has length 250 [2022-02-10 22:20:41,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:41,683 INFO L470 AbstractCegarLoop]: Abstraction has 11840 states and 32542 transitions. [2022-02-10 22:20:41,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 11840 states and 32542 transitions. [2022-02-10 22:20:41,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:41,698 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:41,698 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:41,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-10 22:20:41,698 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:41,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:41,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1641660071, now seen corresponding path program 3 times [2022-02-10 22:20:41,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:41,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792774722] [2022-02-10 22:20:41,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:41,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:41,772 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:41,772 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:41,772 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792774722] [2022-02-10 22:20:41,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792774722] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:41,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:41,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:41,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669806760] [2022-02-10 22:20:41,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:41,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:41,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:41,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:41,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:41,774 INFO L87 Difference]: Start difference. First operand 11840 states and 32542 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:41,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:41,958 INFO L93 Difference]: Finished difference Result 25963 states and 70830 transitions. [2022-02-10 22:20:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:41,959 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:42,009 INFO L225 Difference]: With dead ends: 25963 [2022-02-10 22:20:42,010 INFO L226 Difference]: Without dead ends: 25772 [2022-02-10 22:20:42,010 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:42,010 INFO L934 BasicCegarLoop]: 437 mSDtfsCounter, 447 mSDsluCounter, 1406 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:42,010 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [447 Valid, 1823 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25772 states. [2022-02-10 22:20:42,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25772 to 11076. [2022-02-10 22:20:42,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11076 states, 11075 states have (on average 2.730744920993228) internal successors, (30243), 11075 states have internal predecessors, (30243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:42,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11076 states to 11076 states and 30243 transitions. [2022-02-10 22:20:42,329 INFO L78 Accepts]: Start accepts. Automaton has 11076 states and 30243 transitions. Word has length 250 [2022-02-10 22:20:42,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:42,329 INFO L470 AbstractCegarLoop]: Abstraction has 11076 states and 30243 transitions. [2022-02-10 22:20:42,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11076 states and 30243 transitions. [2022-02-10 22:20:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:42,344 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:42,344 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:42,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-10 22:20:42,344 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:42,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:42,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1300397503, now seen corresponding path program 4 times [2022-02-10 22:20:42,345 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:42,345 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253090764] [2022-02-10 22:20:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:42,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:42,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:42,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253090764] [2022-02-10 22:20:42,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253090764] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:42,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:42,417 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-10 22:20:42,417 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947363547] [2022-02-10 22:20:42,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:42,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-10 22:20:42,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:42,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-10 22:20:42,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-10 22:20:42,417 INFO L87 Difference]: Start difference. First operand 11076 states and 30243 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:42,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:42,621 INFO L93 Difference]: Finished difference Result 32883 states and 89826 transitions. [2022-02-10 22:20:42,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-10 22:20:42,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:42,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:42,686 INFO L225 Difference]: With dead ends: 32883 [2022-02-10 22:20:42,686 INFO L226 Difference]: Without dead ends: 32795 [2022-02-10 22:20:42,686 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:42,687 INFO L934 BasicCegarLoop]: 417 mSDtfsCounter, 416 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1611 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:42,687 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [416 Valid, 1611 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:42,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32795 states. [2022-02-10 22:20:42,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32795 to 11044. [2022-02-10 22:20:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11044 states, 11043 states have (on average 2.7299646835099156) internal successors, (30147), 11043 states have internal predecessors, (30147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11044 states to 11044 states and 30147 transitions. [2022-02-10 22:20:43,017 INFO L78 Accepts]: Start accepts. Automaton has 11044 states and 30147 transitions. Word has length 250 [2022-02-10 22:20:43,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:43,017 INFO L470 AbstractCegarLoop]: Abstraction has 11044 states and 30147 transitions. [2022-02-10 22:20:43,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 7 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand 11044 states and 30147 transitions. [2022-02-10 22:20:43,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-02-10 22:20:43,032 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:43,032 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:43,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-10 22:20:43,032 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:43,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:43,033 INFO L85 PathProgramCache]: Analyzing trace with hash -100180351, now seen corresponding path program 5 times [2022-02-10 22:20:43,033 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:43,033 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744094815] [2022-02-10 22:20:43,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:43,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:43,105 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:20:43,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:43,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744094815] [2022-02-10 22:20:43,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744094815] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 22:20:43,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 22:20:43,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-10 22:20:43,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223382676] [2022-02-10 22:20:43,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 22:20:43,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-10 22:20:43,107 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:43,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-10 22:20:43,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-10 22:20:43,107 INFO L87 Difference]: Start difference. First operand 11044 states and 30147 transitions. Second operand has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:43,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:20:43,255 INFO L93 Difference]: Finished difference Result 17167 states and 46992 transitions. [2022-02-10 22:20:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-10 22:20:43,255 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 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 250 [2022-02-10 22:20:43,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:20:43,284 INFO L225 Difference]: With dead ends: 17167 [2022-02-10 22:20:43,284 INFO L226 Difference]: Without dead ends: 17039 [2022-02-10 22:20:43,285 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:20:43,285 INFO L934 BasicCegarLoop]: 353 mSDtfsCounter, 229 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:20:43,285 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1592 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:20:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17039 states. [2022-02-10 22:20:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17039 to 11036. [2022-02-10 22:20:43,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11036 states, 11035 states have (on average 2.729587675577707) internal successors, (30121), 11035 states have internal predecessors, (30121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11036 states to 11036 states and 30121 transitions. [2022-02-10 22:20:43,505 INFO L78 Accepts]: Start accepts. Automaton has 11036 states and 30121 transitions. Word has length 250 [2022-02-10 22:20:43,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:20:43,505 INFO L470 AbstractCegarLoop]: Abstraction has 11036 states and 30121 transitions. [2022-02-10 22:20:43,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.25) internal successors, (194), 8 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:20:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 11036 states and 30121 transitions. [2022-02-10 22:20:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:20:43,520 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:20:43,520 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:20:43,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-10 22:20:43,520 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:20:43,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:20:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash -387978320, now seen corresponding path program 1 times [2022-02-10 22:20:43,521 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:20:43,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669328754] [2022-02-10 22:20:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:43,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:20:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:44,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:20:44,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669328754] [2022-02-10 22:20:44,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669328754] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:20:44,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756691130] [2022-02-10 22:20:44,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:20:44,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:20:44,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:20:44,735 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) [2022-02-10 22:20:44,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 22:20:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:20:44,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:20:44,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:20:45,908 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:20:45,909 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 30 treesize of output 26 [2022-02-10 22:20:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:46,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:20:50,443 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:20:50,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:20:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:20:50,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756691130] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:20:50,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:20:50,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 35, 30] total 94 [2022-02-10 22:20:50,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472916659] [2022-02-10 22:20:50,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:20:50,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2022-02-10 22:20:50,651 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:20:50,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2022-02-10 22:20:50,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=8346, Unknown=2, NotChecked=0, Total=8742 [2022-02-10 22:20:50,654 INFO L87 Difference]: Start difference. First operand 11036 states and 30121 transitions. Second operand has 94 states, 94 states have (on average 5.98936170212766) internal successors, (563), 94 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:21:28,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:21:28,941 INFO L93 Difference]: Finished difference Result 66746 states and 182458 transitions. [2022-02-10 22:21:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 295 states. [2022-02-10 22:21:28,941 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 94 states have (on average 5.98936170212766) internal successors, (563), 94 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:21:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:21:29,085 INFO L225 Difference]: With dead ends: 66746 [2022-02-10 22:21:29,086 INFO L226 Difference]: Without dead ends: 66265 [2022-02-10 22:21:29,098 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 782 SyntacticMatches, 4 SemanticMatches, 383 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49665 ImplicationChecksByTransitivity, 32.1s TimeCoverageRelationStatistics Valid=18509, Invalid=129329, Unknown=2, NotChecked=0, Total=147840 [2022-02-10 22:21:29,098 INFO L934 BasicCegarLoop]: 1806 mSDtfsCounter, 17645 mSDsluCounter, 79155 mSDsCounter, 0 mSdLazyCounter, 16138 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17645 SdHoareTripleChecker+Valid, 80154 SdHoareTripleChecker+Invalid, 20969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 16138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4428 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:21:29,099 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [17645 Valid, 80154 Invalid, 20969 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [403 Valid, 16138 Invalid, 0 Unknown, 4428 Unchecked, 7.2s Time] [2022-02-10 22:21:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66265 states. [2022-02-10 22:21:29,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66265 to 15944. [2022-02-10 22:21:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15944 states, 15943 states have (on average 2.7526814275857743) internal successors, (43886), 15943 states have internal predecessors, (43886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:21:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15944 states to 15944 states and 43886 transitions. [2022-02-10 22:21:29,692 INFO L78 Accepts]: Start accepts. Automaton has 15944 states and 43886 transitions. Word has length 283 [2022-02-10 22:21:29,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:21:29,692 INFO L470 AbstractCegarLoop]: Abstraction has 15944 states and 43886 transitions. [2022-02-10 22:21:29,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 94 states have (on average 5.98936170212766) internal successors, (563), 94 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:21:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 15944 states and 43886 transitions. [2022-02-10 22:21:29,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:21:29,714 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:21:29,714 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:21:29,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-10 22:21:29,919 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,SelfDestructingSolverStorable34 [2022-02-10 22:21:29,920 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:21:29,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:21:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2084699166, now seen corresponding path program 2 times [2022-02-10 22:21:29,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:21:29,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199983825] [2022-02-10 22:21:29,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:21:29,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:21:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:21:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:21:31,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:21:31,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199983825] [2022-02-10 22:21:31,229 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199983825] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:21:31,229 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169002768] [2022-02-10 22:21:31,229 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:21:31,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:21:31,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:21:31,244 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) [2022-02-10 22:21:31,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-10 22:21:31,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:21:31,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:21:31,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:21:31,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:21:32,509 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:21:32,509 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 30 treesize of output 26 [2022-02-10 22:21:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:21:33,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:21:38,889 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:21:38,889 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:21:39,085 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:21:39,086 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169002768] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:21:39,086 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:21:39,086 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 35, 30] total 95 [2022-02-10 22:21:39,086 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134575202] [2022-02-10 22:21:39,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:21:39,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:21:39,087 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:21:39,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:21:39,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=8522, Unknown=5, NotChecked=0, Total=8930 [2022-02-10 22:21:39,088 INFO L87 Difference]: Start difference. First operand 15944 states and 43886 transitions. Second operand has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:25,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:25,909 INFO L93 Difference]: Finished difference Result 96790 states and 264308 transitions. [2022-02-10 22:22:25,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2022-02-10 22:22:25,910 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:22:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:26,135 INFO L225 Difference]: With dead ends: 96790 [2022-02-10 22:22:26,135 INFO L226 Difference]: Without dead ends: 96454 [2022-02-10 22:22:26,145 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 1343 GetRequests, 868 SyntacticMatches, 5 SemanticMatches, 470 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83004 ImplicationChecksByTransitivity, 41.3s TimeCoverageRelationStatistics Valid=24059, Invalid=198248, Unknown=5, NotChecked=0, Total=222312 [2022-02-10 22:22:26,147 INFO L934 BasicCegarLoop]: 1646 mSDtfsCounter, 21508 mSDsluCounter, 72957 mSDsCounter, 0 mSdLazyCounter, 18407 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21508 SdHoareTripleChecker+Valid, 73711 SdHoareTripleChecker+Invalid, 20462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 18407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1631 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:26,147 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [21508 Valid, 73711 Invalid, 20462 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [424 Valid, 18407 Invalid, 0 Unknown, 1631 Unchecked, 8.0s Time] [2022-02-10 22:22:26,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96454 states. [2022-02-10 22:22:27,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96454 to 19310. [2022-02-10 22:22:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19310 states, 19309 states have (on average 2.764824693148273) internal successors, (53386), 19309 states have internal predecessors, (53386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19310 states to 19310 states and 53386 transitions. [2022-02-10 22:22:27,679 INFO L78 Accepts]: Start accepts. Automaton has 19310 states and 53386 transitions. Word has length 283 [2022-02-10 22:22:27,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:27,679 INFO L470 AbstractCegarLoop]: Abstraction has 19310 states and 53386 transitions. [2022-02-10 22:22:27,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.926315789473684) internal successors, (563), 95 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 19310 states and 53386 transitions. [2022-02-10 22:22:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:22:27,707 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:27,707 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:27,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-10 22:22:27,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:22:27,924 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:27,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1217634306, now seen corresponding path program 1 times [2022-02-10 22:22:27,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:27,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132846222] [2022-02-10 22:22:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:22:28,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:28,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132846222] [2022-02-10 22:22:28,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132846222] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:22:28,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102974703] [2022-02-10 22:22:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:22:28,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:22:28,040 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) [2022-02-10 22:22:28,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-10 22:22:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:28,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-10 22:22:28,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:22:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:22:28,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:22:28,853 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:22:28,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102974703] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:22:28,854 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:22:28,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-02-10 22:22:28,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372113148] [2022-02-10 22:22:28,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:22:28,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:22:28,854 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:28,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:22:28,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:22:28,855 INFO L87 Difference]: Start difference. First operand 19310 states and 53386 transitions. Second operand has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:22:29,079 INFO L93 Difference]: Finished difference Result 36827 states and 101320 transitions. [2022-02-10 22:22:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:22:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 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 283 [2022-02-10 22:22:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:22:29,218 INFO L225 Difference]: With dead ends: 36827 [2022-02-10 22:22:29,219 INFO L226 Difference]: Without dead ends: 36800 [2022-02-10 22:22:29,219 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 565 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:22:29,219 INFO L934 BasicCegarLoop]: 388 mSDtfsCounter, 1142 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 2510 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:22:29,223 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1142 Valid, 2510 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:22:29,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36800 states. [2022-02-10 22:22:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36800 to 30316. [2022-02-10 22:22:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30316 states, 30315 states have (on average 2.7656605640771894) internal successors, (83841), 30315 states have internal predecessors, (83841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30316 states to 30316 states and 83841 transitions. [2022-02-10 22:22:29,849 INFO L78 Accepts]: Start accepts. Automaton has 30316 states and 83841 transitions. Word has length 283 [2022-02-10 22:22:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:22:29,850 INFO L470 AbstractCegarLoop]: Abstraction has 30316 states and 83841 transitions. [2022-02-10 22:22:29,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.0) internal successors, (297), 11 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:22:29,850 INFO L276 IsEmpty]: Start isEmpty. Operand 30316 states and 83841 transitions. [2022-02-10 22:22:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:22:29,895 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:22:29,895 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:22:29,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-10 22:22:30,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:22:30,112 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:22:30,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:22:30,113 INFO L85 PathProgramCache]: Analyzing trace with hash -812989858, now seen corresponding path program 3 times [2022-02-10 22:22:30,113 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:22:30,113 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997640852] [2022-02-10 22:22:30,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:22:30,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:22:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:22:31,229 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:22:31,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:22:31,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997640852] [2022-02-10 22:22:31,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997640852] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:22:31,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008132652] [2022-02-10 22:22:31,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:22:31,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:22:31,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:22:31,231 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) [2022-02-10 22:22:31,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-10 22:22:31,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:22:31,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:22:31,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:22:31,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:22:32,382 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:22:32,382 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 30 treesize of output 22 [2022-02-10 22:22:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:22:32,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:22:38,599 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:22:38,599 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:22:38,775 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:22:38,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008132652] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:22:38,775 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:22:38,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 40, 30] total 92 [2022-02-10 22:22:38,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67462635] [2022-02-10 22:22:38,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:22:38,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-02-10 22:22:38,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:22:38,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-02-10 22:22:38,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=7980, Unknown=5, NotChecked=0, Total=8372 [2022-02-10 22:22:38,798 INFO L87 Difference]: Start difference. First operand 30316 states and 83841 transitions. Second operand has 92 states, 92 states have (on average 5.5978260869565215) internal successors, (515), 92 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:38,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:24:38,729 INFO L93 Difference]: Finished difference Result 213812 states and 585447 transitions. [2022-02-10 22:24:38,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 903 states. [2022-02-10 22:24:38,730 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 5.5978260869565215) internal successors, (515), 92 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:24:38,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:24:39,581 INFO L225 Difference]: With dead ends: 213812 [2022-02-10 22:24:39,582 INFO L226 Difference]: Without dead ends: 211596 [2022-02-10 22:24:39,630 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 2364 GetRequests, 1324 SyntacticMatches, 51 SemanticMatches, 989 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433336 ImplicationChecksByTransitivity, 101.8s TimeCoverageRelationStatistics Valid=76054, Invalid=905031, Unknown=5, NotChecked=0, Total=981090 [2022-02-10 22:24:39,640 INFO L934 BasicCegarLoop]: 2700 mSDtfsCounter, 17247 mSDsluCounter, 128860 mSDsCounter, 0 mSdLazyCounter, 32835 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17247 SdHoareTripleChecker+Valid, 129744 SdHoareTripleChecker+Invalid, 55741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 32835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22412 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:24:39,640 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [17247 Valid, 129744 Invalid, 55741 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [494 Valid, 32835 Invalid, 0 Unknown, 22412 Unchecked, 13.7s Time] [2022-02-10 22:24:39,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211596 states. [2022-02-10 22:24:41,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211596 to 31079. [2022-02-10 22:24:41,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31079 states, 31078 states have (on average 2.7700946006821545) internal successors, (86089), 31078 states have internal predecessors, (86089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31079 states to 31079 states and 86089 transitions. [2022-02-10 22:24:41,685 INFO L78 Accepts]: Start accepts. Automaton has 31079 states and 86089 transitions. Word has length 283 [2022-02-10 22:24:41,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:24:41,686 INFO L470 AbstractCegarLoop]: Abstraction has 31079 states and 86089 transitions. [2022-02-10 22:24:41,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 5.5978260869565215) internal successors, (515), 92 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:24:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 31079 states and 86089 transitions. [2022-02-10 22:24:41,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:24:41,727 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:24:41,728 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:24:41,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-10 22:24:41,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-02-10 22:24:41,945 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:24:41,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:24:41,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2013959458, now seen corresponding path program 4 times [2022-02-10 22:24:41,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:24:41,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078957186] [2022-02-10 22:24:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:24:41,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:24:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:24:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:24:42,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:24:42,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078957186] [2022-02-10 22:24:42,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078957186] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:24:42,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441174230] [2022-02-10 22:24:42,940 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:24:42,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:24:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:24:42,941 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) [2022-02-10 22:24:42,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-10 22:24:43,109 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:24:43,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:24:43,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-10 22:24:43,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:24:43,876 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:24:43,876 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 30 treesize of output 26 [2022-02-10 22:24:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:24:44,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:24:52,384 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:24:52,384 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:24:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:24:52,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441174230] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:24:52,542 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:24:52,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 31, 31] total 96 [2022-02-10 22:24:52,542 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381007310] [2022-02-10 22:24:52,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:24:52,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-10 22:24:52,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:24:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-10 22:24:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=8730, Unknown=7, NotChecked=0, Total=9120 [2022-02-10 22:24:52,545 INFO L87 Difference]: Start difference. First operand 31079 states and 86089 transitions. Second operand has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:01,693 INFO L93 Difference]: Finished difference Result 87348 states and 240788 transitions. [2022-02-10 22:25:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-10 22:25:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-02-10 22:25:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:01,867 INFO L225 Difference]: With dead ends: 87348 [2022-02-10 22:25:01,868 INFO L226 Difference]: Without dead ends: 87203 [2022-02-10 22:25:01,869 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 550 SyntacticMatches, 6 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5324 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=1941, Invalid=19222, Unknown=7, NotChecked=0, Total=21170 [2022-02-10 22:25:01,869 INFO L934 BasicCegarLoop]: 993 mSDtfsCounter, 6078 mSDsluCounter, 44975 mSDsCounter, 0 mSdLazyCounter, 9006 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6078 SdHoareTripleChecker+Valid, 45107 SdHoareTripleChecker+Invalid, 9647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 9006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 569 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:01,869 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6078 Valid, 45107 Invalid, 9647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 9006 Invalid, 0 Unknown, 569 Unchecked, 3.5s Time] [2022-02-10 22:25:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87203 states. [2022-02-10 22:25:02,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87203 to 32387. [2022-02-10 22:25:03,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32387 states, 32386 states have (on average 2.7715062063854754) internal successors, (89758), 32386 states have internal predecessors, (89758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32387 states to 32387 states and 89758 transitions. [2022-02-10 22:25:03,087 INFO L78 Accepts]: Start accepts. Automaton has 32387 states and 89758 transitions. Word has length 283 [2022-02-10 22:25:03,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:03,087 INFO L470 AbstractCegarLoop]: Abstraction has 32387 states and 89758 transitions. [2022-02-10 22:25:03,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:03,088 INFO L276 IsEmpty]: Start isEmpty. Operand 32387 states and 89758 transitions. [2022-02-10 22:25:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:25:03,134 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:03,135 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:03,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-10 22:25:03,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-02-10 22:25:03,354 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:03,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:03,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1897137352, now seen corresponding path program 5 times [2022-02-10 22:25:03,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:03,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697941981] [2022-02-10 22:25:03,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:03,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:04,843 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:04,843 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:04,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697941981] [2022-02-10 22:25:04,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697941981] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:25:04,843 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203480906] [2022-02-10 22:25:04,844 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:25:04,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:25:04,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:25:04,845 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) [2022-02-10 22:25:04,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-10 22:25:05,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-10 22:25:05,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:25:05,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:25:05,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:25:05,849 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:25:05,850 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 30 treesize of output 22 [2022-02-10 22:25:06,736 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:06,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:25:10,890 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:25:10,890 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:25:11,089 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:11,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203480906] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:25:11,090 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:25:11,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:25:11,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056889919] [2022-02-10 22:25:11,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:25:11,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:25:11,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:11,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:25:11,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=8926, Unknown=3, NotChecked=0, Total=9312 [2022-02-10 22:25:11,091 INFO L87 Difference]: Start difference. First operand 32387 states and 89758 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:23,302 INFO L93 Difference]: Finished difference Result 82351 states and 226666 transitions. [2022-02-10 22:25:23,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-10 22:25:23,302 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:25:23,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:23,568 INFO L225 Difference]: With dead ends: 82351 [2022-02-10 22:25:23,568 INFO L226 Difference]: Without dead ends: 81048 [2022-02-10 22:25:23,569 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 730 GetRequests, 560 SyntacticMatches, 13 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6439 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2877, Invalid=22242, Unknown=3, NotChecked=0, Total=25122 [2022-02-10 22:25:23,570 INFO L934 BasicCegarLoop]: 936 mSDtfsCounter, 7696 mSDsluCounter, 43753 mSDsCounter, 0 mSdLazyCounter, 9819 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7696 SdHoareTripleChecker+Valid, 43963 SdHoareTripleChecker+Invalid, 11074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 9819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1121 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:23,570 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [7696 Valid, 43963 Invalid, 11074 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [134 Valid, 9819 Invalid, 0 Unknown, 1121 Unchecked, 4.1s Time] [2022-02-10 22:25:23,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81048 states. [2022-02-10 22:25:24,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81048 to 32515. [2022-02-10 22:25:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32515 states, 32514 states have (on average 2.77080642184905) internal successors, (90090), 32514 states have internal predecessors, (90090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32515 states to 32515 states and 90090 transitions. [2022-02-10 22:25:24,505 INFO L78 Accepts]: Start accepts. Automaton has 32515 states and 90090 transitions. Word has length 283 [2022-02-10 22:25:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:24,505 INFO L470 AbstractCegarLoop]: Abstraction has 32515 states and 90090 transitions. [2022-02-10 22:25:24,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:24,505 INFO L276 IsEmpty]: Start isEmpty. Operand 32515 states and 90090 transitions. [2022-02-10 22:25:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:25:24,556 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:24,557 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:24,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-10 22:25:24,771 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,SelfDestructingSolverStorable39 [2022-02-10 22:25:24,772 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:24,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:24,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1114213930, now seen corresponding path program 6 times [2022-02-10 22:25:24,773 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:24,773 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037938301] [2022-02-10 22:25:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:24,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:26,036 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:26,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:26,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037938301] [2022-02-10 22:25:26,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037938301] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:25:26,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269953089] [2022-02-10 22:25:26,036 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:25:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:25:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:25:26,037 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) [2022-02-10 22:25:26,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-10 22:25:26,220 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:25:26,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:25:26,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:25:26,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:25:27,249 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:25:27,249 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 41 treesize of output 25 [2022-02-10 22:25:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:28,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:25:29,901 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:25:29,901 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 72 [2022-02-10 22:25:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:30,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269953089] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:25:30,042 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:25:30,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 93 [2022-02-10 22:25:30,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188162626] [2022-02-10 22:25:30,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:25:30,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2022-02-10 22:25:30,043 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:30,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2022-02-10 22:25:30,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=8175, Unknown=0, NotChecked=0, Total=8556 [2022-02-10 22:25:30,044 INFO L87 Difference]: Start difference. First operand 32515 states and 90090 transitions. Second operand has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:39,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:39,463 INFO L93 Difference]: Finished difference Result 82311 states and 226628 transitions. [2022-02-10 22:25:39,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:25:39,464 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 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 283 [2022-02-10 22:25:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:39,726 INFO L225 Difference]: With dead ends: 82311 [2022-02-10 22:25:39,726 INFO L226 Difference]: Without dead ends: 82166 [2022-02-10 22:25:39,727 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 571 SyntacticMatches, 3 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6614 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=2543, Invalid=23217, Unknown=0, NotChecked=0, Total=25760 [2022-02-10 22:25:39,727 INFO L934 BasicCegarLoop]: 939 mSDtfsCounter, 9206 mSDsluCounter, 36710 mSDsCounter, 0 mSdLazyCounter, 8407 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9206 SdHoareTripleChecker+Valid, 36920 SdHoareTripleChecker+Invalid, 8785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 8407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 277 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:39,728 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [9206 Valid, 36920 Invalid, 8785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 8407 Invalid, 0 Unknown, 277 Unchecked, 3.5s Time] [2022-02-10 22:25:39,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82166 states. [2022-02-10 22:25:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82166 to 32515. [2022-02-10 22:25:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32515 states, 32514 states have (on average 2.77080642184905) internal successors, (90090), 32514 states have internal predecessors, (90090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:40,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32515 states to 32515 states and 90090 transitions. [2022-02-10 22:25:40,631 INFO L78 Accepts]: Start accepts. Automaton has 32515 states and 90090 transitions. Word has length 283 [2022-02-10 22:25:40,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:40,632 INFO L470 AbstractCegarLoop]: Abstraction has 32515 states and 90090 transitions. [2022-02-10 22:25:40,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 5.408602150537634) internal successors, (503), 93 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 32515 states and 90090 transitions. [2022-02-10 22:25:40,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:25:40,684 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:40,684 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:40,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-10 22:25:40,899 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,SelfDestructingSolverStorable40 [2022-02-10 22:25:40,900 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:40,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:40,900 INFO L85 PathProgramCache]: Analyzing trace with hash -339128410, now seen corresponding path program 7 times [2022-02-10 22:25:40,900 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:40,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689958283] [2022-02-10 22:25:40,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:40,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:42,104 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:42,104 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:42,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689958283] [2022-02-10 22:25:42,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689958283] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:25:42,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189409482] [2022-02-10 22:25:42,104 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:25:42,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:25:42,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:25:42,106 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) [2022-02-10 22:25:42,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-10 22:25:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:42,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:25:42,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:25:43,370 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:25:43,371 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 30 treesize of output 26 [2022-02-10 22:25:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:43,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:25:46,419 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:25:46,420 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:25:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:46,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189409482] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:25:46,628 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:25:46,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 36, 31] total 99 [2022-02-10 22:25:46,629 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311492466] [2022-02-10 22:25:46,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:25:46,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-10 22:25:46,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:25:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-10 22:25:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=414, Invalid=9287, Unknown=1, NotChecked=0, Total=9702 [2022-02-10 22:25:46,630 INFO L87 Difference]: Start difference. First operand 32515 states and 90090 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:56,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:25:56,329 INFO L93 Difference]: Finished difference Result 83363 states and 229429 transitions. [2022-02-10 22:25:56,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 22:25:56,330 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:25:56,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:25:56,504 INFO L225 Difference]: With dead ends: 83363 [2022-02-10 22:25:56,504 INFO L226 Difference]: Without dead ends: 83218 [2022-02-10 22:25:56,506 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 562 SyntacticMatches, 1 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6422 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=2371, Invalid=23710, Unknown=1, NotChecked=0, Total=26082 [2022-02-10 22:25:56,506 INFO L934 BasicCegarLoop]: 1037 mSDtfsCounter, 8413 mSDsluCounter, 45747 mSDsCounter, 0 mSdLazyCounter, 9890 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8413 SdHoareTripleChecker+Valid, 46094 SdHoareTripleChecker+Invalid, 10302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 9890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 325 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:25:56,506 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8413 Valid, 46094 Invalid, 10302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 9890 Invalid, 0 Unknown, 325 Unchecked, 3.9s Time] [2022-02-10 22:25:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83218 states. [2022-02-10 22:25:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83218 to 32534. [2022-02-10 22:25:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32534 states, 32533 states have (on average 2.7702640395905695) internal successors, (90125), 32533 states have internal predecessors, (90125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32534 states to 32534 states and 90125 transitions. [2022-02-10 22:25:57,512 INFO L78 Accepts]: Start accepts. Automaton has 32534 states and 90125 transitions. Word has length 283 [2022-02-10 22:25:57,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:25:57,512 INFO L470 AbstractCegarLoop]: Abstraction has 32534 states and 90125 transitions. [2022-02-10 22:25:57,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:25:57,512 INFO L276 IsEmpty]: Start isEmpty. Operand 32534 states and 90125 transitions. [2022-02-10 22:25:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:25:57,561 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:25:57,561 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:25:57,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-10 22:25:57,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:25:57,779 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:25:57,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:25:57,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1770750512, now seen corresponding path program 8 times [2022-02-10 22:25:57,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:25:57,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842842920] [2022-02-10 22:25:57,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:25:57,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:25:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:25:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:25:59,113 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:25:59,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842842920] [2022-02-10 22:25:59,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842842920] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:25:59,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875140662] [2022-02-10 22:25:59,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:25:59,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:25:59,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:25:59,128 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) [2022-02-10 22:25:59,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-10 22:25:59,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:25:59,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:25:59,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:25:59,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:26:00,206 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:26:00,207 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 30 treesize of output 26 [2022-02-10 22:26:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:01,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:26:05,383 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:26:05,384 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:26:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:05,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875140662] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:26:05,561 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:26:05,561 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 36, 31] total 99 [2022-02-10 22:26:05,561 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620883328] [2022-02-10 22:26:05,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:26:05,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-10 22:26:05,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-10 22:26:05,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=9283, Unknown=3, NotChecked=0, Total=9702 [2022-02-10 22:26:05,564 INFO L87 Difference]: Start difference. First operand 32534 states and 90125 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:15,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:15,223 INFO L93 Difference]: Finished difference Result 86664 states and 238969 transitions. [2022-02-10 22:26:15,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-10 22:26:15,223 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:26:15,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:15,402 INFO L225 Difference]: With dead ends: 86664 [2022-02-10 22:26:15,402 INFO L226 Difference]: Without dead ends: 86519 [2022-02-10 22:26:15,404 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 555 SyntacticMatches, 6 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6018 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=2538, Invalid=21639, Unknown=3, NotChecked=0, Total=24180 [2022-02-10 22:26:15,404 INFO L934 BasicCegarLoop]: 942 mSDtfsCounter, 8742 mSDsluCounter, 40727 mSDsCounter, 0 mSdLazyCounter, 8178 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8742 SdHoareTripleChecker+Valid, 41088 SdHoareTripleChecker+Invalid, 9287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 8178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1041 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:15,404 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8742 Valid, 41088 Invalid, 9287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 8178 Invalid, 0 Unknown, 1041 Unchecked, 3.3s Time] [2022-02-10 22:26:15,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86519 states. [2022-02-10 22:26:16,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86519 to 32753. [2022-02-10 22:26:16,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32753 states, 32752 states have (on average 2.7692354665363945) internal successors, (90698), 32752 states have internal predecessors, (90698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32753 states to 32753 states and 90698 transitions. [2022-02-10 22:26:16,365 INFO L78 Accepts]: Start accepts. Automaton has 32753 states and 90698 transitions. Word has length 283 [2022-02-10 22:26:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:16,365 INFO L470 AbstractCegarLoop]: Abstraction has 32753 states and 90698 transitions. [2022-02-10 22:26:16,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 32753 states and 90698 transitions. [2022-02-10 22:26:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:26:16,410 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:16,410 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:16,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-10 22:26:16,623 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,SelfDestructingSolverStorable42 [2022-02-10 22:26:16,624 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:16,624 INFO L85 PathProgramCache]: Analyzing trace with hash -430432054, now seen corresponding path program 9 times [2022-02-10 22:26:16,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:16,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818360120] [2022-02-10 22:26:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:16,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:18,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:18,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818360120] [2022-02-10 22:26:18,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818360120] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:26:18,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926943563] [2022-02-10 22:26:18,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:26:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:26:18,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:26:18,428 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) [2022-02-10 22:26:18,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-10 22:26:18,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:26:18,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:26:18,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:26:18,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:26:19,494 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:26:19,494 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 30 treesize of output 22 [2022-02-10 22:26:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:20,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:26:22,452 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:26:22,452 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:26:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:22,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926943563] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:26:22,568 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:26:22,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:26:22,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176015817] [2022-02-10 22:26:22,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:26:22,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:26:22,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:22,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:26:22,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=8928, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:26:22,570 INFO L87 Difference]: Start difference. First operand 32753 states and 90698 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:32,203 INFO L93 Difference]: Finished difference Result 82454 states and 227335 transitions. [2022-02-10 22:26:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-10 22:26:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:26:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:32,369 INFO L225 Difference]: With dead ends: 82454 [2022-02-10 22:26:32,369 INFO L226 Difference]: Without dead ends: 82100 [2022-02-10 22:26:32,370 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 559 SyntacticMatches, 4 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5909 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=2085, Invalid=21785, Unknown=0, NotChecked=0, Total=23870 [2022-02-10 22:26:32,371 INFO L934 BasicCegarLoop]: 970 mSDtfsCounter, 7145 mSDsluCounter, 50183 mSDsCounter, 0 mSdLazyCounter, 11498 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7145 SdHoareTripleChecker+Valid, 50389 SdHoareTripleChecker+Invalid, 11936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 11498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 344 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:32,371 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [7145 Valid, 50389 Invalid, 11936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 11498 Invalid, 0 Unknown, 344 Unchecked, 4.2s Time] [2022-02-10 22:26:32,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82100 states. [2022-02-10 22:26:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82100 to 32758. [2022-02-10 22:26:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32758 states, 32757 states have (on average 2.7687517171902187) internal successors, (90696), 32757 states have internal predecessors, (90696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32758 states to 32758 states and 90696 transitions. [2022-02-10 22:26:33,755 INFO L78 Accepts]: Start accepts. Automaton has 32758 states and 90696 transitions. Word has length 283 [2022-02-10 22:26:33,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:33,755 INFO L470 AbstractCegarLoop]: Abstraction has 32758 states and 90696 transitions. [2022-02-10 22:26:33,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:33,756 INFO L276 IsEmpty]: Start isEmpty. Operand 32758 states and 90696 transitions. [2022-02-10 22:26:33,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:26:33,804 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:33,804 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:33,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-02-10 22:26:34,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:26:34,020 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:34,021 INFO L85 PathProgramCache]: Analyzing trace with hash -28023554, now seen corresponding path program 10 times [2022-02-10 22:26:34,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:34,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792327715] [2022-02-10 22:26:34,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:35,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:35,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792327715] [2022-02-10 22:26:35,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792327715] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:26:35,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172041741] [2022-02-10 22:26:35,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:26:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:26:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:26:35,478 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:26:35,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-10 22:26:35,710 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:26:35,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:26:35,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-10 22:26:35,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:26:36,335 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:26:36,335 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 30 treesize of output 26 [2022-02-10 22:26:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:37,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:26:44,277 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:26:44,277 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:26:44,473 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:44,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172041741] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:26:44,474 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:26:44,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 31, 31] total 98 [2022-02-10 22:26:44,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210176242] [2022-02-10 22:26:44,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:26:44,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-10 22:26:44,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:26:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-10 22:26:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=9106, Unknown=5, NotChecked=0, Total=9506 [2022-02-10 22:26:44,476 INFO L87 Difference]: Start difference. First operand 32758 states and 90696 transitions. Second operand has 98 states, 98 states have (on average 5.26530612244898) internal successors, (516), 98 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:53,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:26:53,885 INFO L93 Difference]: Finished difference Result 82236 states and 226784 transitions. [2022-02-10 22:26:53,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-10 22:26:53,886 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 5.26530612244898) internal successors, (516), 98 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-02-10 22:26:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:26:54,048 INFO L225 Difference]: With dead ends: 82236 [2022-02-10 22:26:54,048 INFO L226 Difference]: Without dead ends: 81923 [2022-02-10 22:26:54,049 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 566 SyntacticMatches, 3 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6396 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=2420, Invalid=23657, Unknown=5, NotChecked=0, Total=26082 [2022-02-10 22:26:54,050 INFO L934 BasicCegarLoop]: 987 mSDtfsCounter, 6821 mSDsluCounter, 42339 mSDsCounter, 0 mSdLazyCounter, 8735 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6821 SdHoareTripleChecker+Valid, 42675 SdHoareTripleChecker+Invalid, 9312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 8735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 480 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-02-10 22:26:54,050 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [6821 Valid, 42675 Invalid, 9312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 8735 Invalid, 0 Unknown, 480 Unchecked, 3.5s Time] [2022-02-10 22:26:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81923 states. [2022-02-10 22:26:54,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81923 to 32742. [2022-02-10 22:26:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32742 states, 32741 states have (on average 2.768974680064751) internal successors, (90659), 32741 states have internal predecessors, (90659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32742 states to 32742 states and 90659 transitions. [2022-02-10 22:26:55,115 INFO L78 Accepts]: Start accepts. Automaton has 32742 states and 90659 transitions. Word has length 283 [2022-02-10 22:26:55,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:26:55,115 INFO L470 AbstractCegarLoop]: Abstraction has 32742 states and 90659 transitions. [2022-02-10 22:26:55,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 5.26530612244898) internal successors, (516), 98 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:26:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand 32742 states and 90659 transitions. [2022-02-10 22:26:55,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:26:55,167 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:26:55,167 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:26:55,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-10 22:26:55,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:26:55,386 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:26:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:26:55,387 INFO L85 PathProgramCache]: Analyzing trace with hash -399210428, now seen corresponding path program 11 times [2022-02-10 22:26:55,387 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:26:55,387 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038288818] [2022-02-10 22:26:55,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:26:55,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:26:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:26:56,934 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:56,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:26:56,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038288818] [2022-02-10 22:26:56,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038288818] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:26:56,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225254969] [2022-02-10 22:26:56,935 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:26:56,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:26:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:26:56,936 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:26:56,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-10 22:26:57,155 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-10 22:26:57,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:26:57,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:26:57,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:26:58,105 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:26:58,105 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 30 treesize of output 22 [2022-02-10 22:26:58,900 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:26:58,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:27:01,922 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:27:01,922 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:27:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:27:02,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225254969] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:27:02,112 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:27:02,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:27:02,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384371337] [2022-02-10 22:27:02,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:27:02,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:27:02,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:02,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:27:02,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=8926, Unknown=1, NotChecked=0, Total=9312 [2022-02-10 22:27:02,115 INFO L87 Difference]: Start difference. First operand 32742 states and 90659 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:27:12,027 INFO L93 Difference]: Finished difference Result 86604 states and 238726 transitions. [2022-02-10 22:27:12,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-10 22:27:12,027 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:27:12,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:27:12,201 INFO L225 Difference]: With dead ends: 86604 [2022-02-10 22:27:12,201 INFO L226 Difference]: Without dead ends: 85870 [2022-02-10 22:27:12,202 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5126 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2015, Invalid=20634, Unknown=1, NotChecked=0, Total=22650 [2022-02-10 22:27:12,203 INFO L934 BasicCegarLoop]: 1036 mSDtfsCounter, 7257 mSDsluCounter, 51793 mSDsCounter, 0 mSdLazyCounter, 10755 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7257 SdHoareTripleChecker+Valid, 51892 SdHoareTripleChecker+Invalid, 11149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 10755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:27:12,203 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [7257 Valid, 51892 Invalid, 11149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 10755 Invalid, 0 Unknown, 306 Unchecked, 4.3s Time] [2022-02-10 22:27:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85870 states. [2022-02-10 22:27:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85870 to 32745. [2022-02-10 22:27:13,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32745 states, 32744 states have (on average 2.768598827266064) internal successors, (90655), 32744 states have internal predecessors, (90655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32745 states to 32745 states and 90655 transitions. [2022-02-10 22:27:13,284 INFO L78 Accepts]: Start accepts. Automaton has 32745 states and 90655 transitions. Word has length 283 [2022-02-10 22:27:13,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:27:13,285 INFO L470 AbstractCegarLoop]: Abstraction has 32745 states and 90655 transitions. [2022-02-10 22:27:13,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:27:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 32745 states and 90655 transitions. [2022-02-10 22:27:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:27:13,331 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:27:13,331 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:27:13,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-10 22:27:13,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2022-02-10 22:27:13,540 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:27:13,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:27:13,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1208633770, now seen corresponding path program 12 times [2022-02-10 22:27:13,540 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:27:13,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526951913] [2022-02-10 22:27:13,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:27:13,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:27:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:27:14,843 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:27:14,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:27:14,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526951913] [2022-02-10 22:27:14,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526951913] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:27:14,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10615114] [2022-02-10 22:27:14,844 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:27:14,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:27:14,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:27:14,847 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:27:14,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-10 22:27:15,029 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:27:15,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:27:15,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:27:15,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:27:16,267 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:27:16,268 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 30 treesize of output 22 [2022-02-10 22:27:16,818 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:27:16,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:27:19,211 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:27:19,212 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:27:19,412 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:27:19,412 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10615114] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:27:19,412 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:27:19,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-02-10 22:27:19,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060140418] [2022-02-10 22:27:19,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:27:19,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:27:19,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:27:19,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:27:19,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=8544, Unknown=0, NotChecked=0, Total=8930 [2022-02-10 22:27:19,414 INFO L87 Difference]: Start difference. First operand 32745 states and 90655 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:29,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:29,825 INFO L93 Difference]: Finished difference Result 117075 states and 319443 transitions. [2022-02-10 22:28:29,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2022-02-10 22:28:29,825 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:28:29,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:30,103 INFO L225 Difference]: With dead ends: 117075 [2022-02-10 22:28:30,103 INFO L226 Difference]: Without dead ends: 116489 [2022-02-10 22:28:30,112 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 1282 GetRequests, 827 SyntacticMatches, 15 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 69884 ImplicationChecksByTransitivity, 59.7s TimeCoverageRelationStatistics Valid=20688, Invalid=174234, Unknown=0, NotChecked=0, Total=194922 [2022-02-10 22:28:30,112 INFO L934 BasicCegarLoop]: 1804 mSDtfsCounter, 16411 mSDsluCounter, 80877 mSDsCounter, 0 mSdLazyCounter, 23245 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16411 SdHoareTripleChecker+Valid, 81389 SdHoareTripleChecker+Invalid, 25560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 23245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1943 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:30,113 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [16411 Valid, 81389 Invalid, 25560 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [372 Valid, 23245 Invalid, 0 Unknown, 1943 Unchecked, 10.7s Time] [2022-02-10 22:28:30,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116489 states. [2022-02-10 22:28:31,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116489 to 34671. [2022-02-10 22:28:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34671 states, 34670 states have (on average 2.7721949812518027) internal successors, (96112), 34670 states have internal predecessors, (96112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34671 states to 34671 states and 96112 transitions. [2022-02-10 22:28:31,441 INFO L78 Accepts]: Start accepts. Automaton has 34671 states and 96112 transitions. Word has length 283 [2022-02-10 22:28:31,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:31,441 INFO L470 AbstractCegarLoop]: Abstraction has 34671 states and 96112 transitions. [2022-02-10 22:28:31,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:31,442 INFO L276 IsEmpty]: Start isEmpty. Operand 34671 states and 96112 transitions. [2022-02-10 22:28:31,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:28:31,489 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:31,489 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:31,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-10 22:28:31,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:28:31,706 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:31,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1592504256, now seen corresponding path program 13 times [2022-02-10 22:28:31,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:31,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89754300] [2022-02-10 22:28:31,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:31,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:28:33,173 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:33,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89754300] [2022-02-10 22:28:33,173 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89754300] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:28:33,173 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140882087] [2022-02-10 22:28:33,174 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:28:33,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:28:33,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:28:33,177 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:28:33,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-10 22:28:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:33,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:28:33,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:28:34,617 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:28:34,618 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 22 [2022-02-10 22:28:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:28:35,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:28:40,045 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:28:40,045 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:28:40,248 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:28:40,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140882087] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:28:40,248 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:28:40,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:28:40,248 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849199453] [2022-02-10 22:28:40,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:28:40,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:28:40,249 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:28:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:28:40,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=8922, Unknown=4, NotChecked=0, Total=9312 [2022-02-10 22:28:40,250 INFO L87 Difference]: Start difference. First operand 34671 states and 96112 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:28:51,984 INFO L93 Difference]: Finished difference Result 88343 states and 243129 transitions. [2022-02-10 22:28:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-10 22:28:51,984 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:28:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:28:52,173 INFO L225 Difference]: With dead ends: 88343 [2022-02-10 22:28:52,173 INFO L226 Difference]: Without dead ends: 87192 [2022-02-10 22:28:52,175 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 558 SyntacticMatches, 6 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5851 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=2329, Invalid=21537, Unknown=4, NotChecked=0, Total=23870 [2022-02-10 22:28:52,175 INFO L934 BasicCegarLoop]: 981 mSDtfsCounter, 9283 mSDsluCounter, 51035 mSDsCounter, 0 mSdLazyCounter, 12330 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9283 SdHoareTripleChecker+Valid, 51083 SdHoareTripleChecker+Invalid, 12978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 12330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 584 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:28:52,175 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [9283 Valid, 51083 Invalid, 12978 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 12330 Invalid, 0 Unknown, 584 Unchecked, 4.9s Time] [2022-02-10 22:28:52,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87192 states. [2022-02-10 22:28:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87192 to 34902. [2022-02-10 22:28:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34902 states, 34901 states have (on average 2.77069424944844) internal successors, (96700), 34901 states have internal predecessors, (96700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34902 states to 34902 states and 96700 transitions. [2022-02-10 22:28:53,238 INFO L78 Accepts]: Start accepts. Automaton has 34902 states and 96700 transitions. Word has length 283 [2022-02-10 22:28:53,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:28:53,238 INFO L470 AbstractCegarLoop]: Abstraction has 34902 states and 96700 transitions. [2022-02-10 22:28:53,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:28:53,238 INFO L276 IsEmpty]: Start isEmpty. Operand 34902 states and 96700 transitions. [2022-02-10 22:28:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:28:53,283 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:28:53,283 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:28:53,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-10 22:28:53,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:28:53,500 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:28:53,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:28:53,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1919539618, now seen corresponding path program 14 times [2022-02-10 22:28:53,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:28:53,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873535047] [2022-02-10 22:28:53,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:28:53,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:28:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:28:55,415 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:28:55,416 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:28:55,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873535047] [2022-02-10 22:28:55,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873535047] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:28:55,416 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761702674] [2022-02-10 22:28:55,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:28:55,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:28:55,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:28:55,417 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:28:55,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-02-10 22:28:55,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:28:55,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:28:55,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:28:55,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:28:56,308 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:28:56,309 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 30 treesize of output 26 [2022-02-10 22:28:56,834 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:28:56,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:29:00,931 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:29:00,932 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:29:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:01,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761702674] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:29:01,146 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:29:01,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 31] total 100 [2022-02-10 22:29:01,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598067334] [2022-02-10 22:29:01,146 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:29:01,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-10 22:29:01,147 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:01,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-10 22:29:01,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=425, Invalid=9472, Unknown=3, NotChecked=0, Total=9900 [2022-02-10 22:29:01,148 INFO L87 Difference]: Start difference. First operand 34902 states and 96700 transitions. Second operand has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:10,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:10,938 INFO L93 Difference]: Finished difference Result 88483 states and 243318 transitions. [2022-02-10 22:29:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-10 22:29:10,939 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:29:10,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:11,112 INFO L225 Difference]: With dead ends: 88483 [2022-02-10 22:29:11,113 INFO L226 Difference]: Without dead ends: 88338 [2022-02-10 22:29:11,114 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 566 SyntacticMatches, 1 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7020 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=2673, Invalid=25380, Unknown=3, NotChecked=0, Total=28056 [2022-02-10 22:29:11,114 INFO L934 BasicCegarLoop]: 935 mSDtfsCounter, 8556 mSDsluCounter, 40826 mSDsCounter, 0 mSdLazyCounter, 9703 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8556 SdHoareTripleChecker+Valid, 40967 SdHoareTripleChecker+Invalid, 10273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 9703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 483 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:11,115 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8556 Valid, 40967 Invalid, 10273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 9703 Invalid, 0 Unknown, 483 Unchecked, 3.8s Time] [2022-02-10 22:29:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88338 states. [2022-02-10 22:29:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88338 to 34903. [2022-02-10 22:29:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34903 states, 34902 states have (on average 2.770672167784081) internal successors, (96702), 34902 states have internal predecessors, (96702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34903 states to 34903 states and 96702 transitions. [2022-02-10 22:29:12,228 INFO L78 Accepts]: Start accepts. Automaton has 34903 states and 96702 transitions. Word has length 283 [2022-02-10 22:29:12,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:12,229 INFO L470 AbstractCegarLoop]: Abstraction has 34903 states and 96702 transitions. [2022-02-10 22:29:12,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:12,229 INFO L276 IsEmpty]: Start isEmpty. Operand 34903 states and 96702 transitions. [2022-02-10 22:29:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:29:12,281 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:12,281 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:12,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-02-10 22:29:12,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:29:12,505 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:12,505 INFO L85 PathProgramCache]: Analyzing trace with hash 466197278, now seen corresponding path program 15 times [2022-02-10 22:29:12,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:12,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507754016] [2022-02-10 22:29:12,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:12,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:14,426 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:14,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507754016] [2022-02-10 22:29:14,426 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507754016] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:29:14,426 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986363059] [2022-02-10 22:29:14,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:29:14,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:29:14,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:29:14,427 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:29:14,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-02-10 22:29:14,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:29:14,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:29:14,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:29:14,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:29:15,678 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:29:15,679 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 30 treesize of output 22 [2022-02-10 22:29:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:16,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:29:18,422 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:29:18,422 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:29:18,550 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:18,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986363059] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:29:18,550 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:29:18,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:29:18,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971423642] [2022-02-10 22:29:18,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:29:18,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:29:18,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:18,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:29:18,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=8927, Unknown=0, NotChecked=0, Total=9312 [2022-02-10 22:29:18,552 INFO L87 Difference]: Start difference. First operand 34903 states and 96702 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:30,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:30,096 INFO L93 Difference]: Finished difference Result 88163 states and 242602 transitions. [2022-02-10 22:29:30,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-10 22:29:30,097 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:29:30,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:30,279 INFO L225 Difference]: With dead ends: 88163 [2022-02-10 22:29:30,279 INFO L226 Difference]: Without dead ends: 87543 [2022-02-10 22:29:30,281 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 572 SyntacticMatches, 3 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6786 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2598, Invalid=25458, Unknown=0, NotChecked=0, Total=28056 [2022-02-10 22:29:30,281 INFO L934 BasicCegarLoop]: 1037 mSDtfsCounter, 11127 mSDsluCounter, 46427 mSDsCounter, 0 mSdLazyCounter, 11481 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11127 SdHoareTripleChecker+Valid, 46731 SdHoareTripleChecker+Invalid, 12397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 11481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 821 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:30,281 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [11127 Valid, 46731 Invalid, 12397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [95 Valid, 11481 Invalid, 0 Unknown, 821 Unchecked, 4.6s Time] [2022-02-10 22:29:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87543 states. [2022-02-10 22:29:31,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87543 to 34935. [2022-02-10 22:29:31,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34935 states, 34934 states have (on average 2.7680196942806434) internal successors, (96698), 34934 states have internal predecessors, (96698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:31,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34935 states to 34935 states and 96698 transitions. [2022-02-10 22:29:31,347 INFO L78 Accepts]: Start accepts. Automaton has 34935 states and 96698 transitions. Word has length 283 [2022-02-10 22:29:31,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:31,348 INFO L470 AbstractCegarLoop]: Abstraction has 34935 states and 96698 transitions. [2022-02-10 22:29:31,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:31,348 INFO L276 IsEmpty]: Start isEmpty. Operand 34935 states and 96698 transitions. [2022-02-10 22:29:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:29:31,398 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:31,399 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:31,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-02-10 22:29:31,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-02-10 22:29:31,606 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:31,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:31,606 INFO L85 PathProgramCache]: Analyzing trace with hash -965424824, now seen corresponding path program 16 times [2022-02-10 22:29:31,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:31,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433399195] [2022-02-10 22:29:31,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:31,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:32,916 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:32,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:32,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433399195] [2022-02-10 22:29:32,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433399195] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:29:32,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863130036] [2022-02-10 22:29:32,916 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:29:32,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:29:32,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:29:32,918 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:29:32,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-02-10 22:29:33,280 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:29:33,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:29:33,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-10 22:29:33,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:29:33,998 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:29:33,999 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 30 treesize of output 26 [2022-02-10 22:29:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:34,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:29:42,966 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:29:42,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:29:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:43,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863130036] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:29:43,158 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:29:43,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 31, 31] total 97 [2022-02-10 22:29:43,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807178745] [2022-02-10 22:29:43,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:29:43,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:29:43,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:29:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:29:43,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=8937, Unknown=5, NotChecked=0, Total=9312 [2022-02-10 22:29:43,160 INFO L87 Difference]: Start difference. First operand 34935 states and 96698 transitions. Second operand has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:29:53,749 INFO L93 Difference]: Finished difference Result 90382 states and 248636 transitions. [2022-02-10 22:29:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-10 22:29:53,750 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-02-10 22:29:53,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:29:53,931 INFO L225 Difference]: With dead ends: 90382 [2022-02-10 22:29:53,931 INFO L226 Difference]: Without dead ends: 90237 [2022-02-10 22:29:53,933 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 581 SyntacticMatches, 2 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7469 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=3065, Invalid=28436, Unknown=5, NotChecked=0, Total=31506 [2022-02-10 22:29:53,935 INFO L934 BasicCegarLoop]: 932 mSDtfsCounter, 8447 mSDsluCounter, 44133 mSDsCounter, 0 mSdLazyCounter, 11070 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8447 SdHoareTripleChecker+Valid, 44278 SdHoareTripleChecker+Invalid, 11484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 11070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 305 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:29:53,935 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8447 Valid, 44278 Invalid, 11484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 11070 Invalid, 0 Unknown, 305 Unchecked, 4.1s Time] [2022-02-10 22:29:54,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90237 states. [2022-02-10 22:29:54,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90237 to 35049. [2022-02-10 22:29:54,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35049 states, 35048 states have (on average 2.7652077151335313) internal successors, (96915), 35048 states have internal predecessors, (96915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:54,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35049 states to 35049 states and 96915 transitions. [2022-02-10 22:29:54,989 INFO L78 Accepts]: Start accepts. Automaton has 35049 states and 96915 transitions. Word has length 283 [2022-02-10 22:29:54,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:29:54,990 INFO L470 AbstractCegarLoop]: Abstraction has 35049 states and 96915 transitions. [2022-02-10 22:29:54,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.319587628865979) internal successors, (516), 97 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:29:54,991 INFO L276 IsEmpty]: Start isEmpty. Operand 35049 states and 96915 transitions. [2022-02-10 22:29:55,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:29:55,041 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:29:55,041 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:29:55,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-02-10 22:29:55,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:29:55,255 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:29:55,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:29:55,256 INFO L85 PathProgramCache]: Analyzing trace with hash 374893634, now seen corresponding path program 17 times [2022-02-10 22:29:55,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:29:55,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158655041] [2022-02-10 22:29:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:29:55,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:29:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:29:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:57,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:29:57,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158655041] [2022-02-10 22:29:57,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158655041] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:29:57,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66758111] [2022-02-10 22:29:57,121 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:29:57,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:29:57,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:29:57,123 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:29:57,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-02-10 22:29:57,362 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-10 22:29:57,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:29:57,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:29:57,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:29:58,208 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:29:58,208 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 30 treesize of output 22 [2022-02-10 22:29:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:29:58,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:30:02,790 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:30:02,791 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:30:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:03,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66758111] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:30:03,022 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:30:03,022 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 41, 31] total 97 [2022-02-10 22:30:03,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319603073] [2022-02-10 22:30:03,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:30:03,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-02-10 22:30:03,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:03,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-02-10 22:30:03,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=8923, Unknown=3, NotChecked=0, Total=9312 [2022-02-10 22:30:03,024 INFO L87 Difference]: Start difference. First operand 35049 states and 96915 transitions. Second operand has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:15,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:15,705 INFO L93 Difference]: Finished difference Result 88039 states and 242399 transitions. [2022-02-10 22:30:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-10 22:30:15,706 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:30:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:15,878 INFO L225 Difference]: With dead ends: 88039 [2022-02-10 22:30:15,879 INFO L226 Difference]: Without dead ends: 87685 [2022-02-10 22:30:15,880 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 577 SyntacticMatches, 4 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7480 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=2906, Invalid=27193, Unknown=3, NotChecked=0, Total=30102 [2022-02-10 22:30:15,881 INFO L934 BasicCegarLoop]: 996 mSDtfsCounter, 8115 mSDsluCounter, 47528 mSDsCounter, 0 mSdLazyCounter, 11882 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8115 SdHoareTripleChecker+Valid, 47848 SdHoareTripleChecker+Invalid, 12546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 11882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 556 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:15,881 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8115 Valid, 47848 Invalid, 12546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [108 Valid, 11882 Invalid, 0 Unknown, 556 Unchecked, 4.8s Time] [2022-02-10 22:30:16,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87685 states. [2022-02-10 22:30:16,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87685 to 35053. [2022-02-10 22:30:16,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35053 states, 35052 states have (on average 2.7646924569211455) internal successors, (96908), 35052 states have internal predecessors, (96908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:16,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35053 states to 35053 states and 96908 transitions. [2022-02-10 22:30:16,955 INFO L78 Accepts]: Start accepts. Automaton has 35053 states and 96908 transitions. Word has length 283 [2022-02-10 22:30:16,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:16,955 INFO L470 AbstractCegarLoop]: Abstraction has 35053 states and 96908 transitions. [2022-02-10 22:30:16,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 5.309278350515464) internal successors, (515), 97 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:16,955 INFO L276 IsEmpty]: Start isEmpty. Operand 35053 states and 96908 transitions. [2022-02-10 22:30:17,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:30:17,002 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:17,002 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:17,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-02-10 22:30:17,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:30:17,208 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:17,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:17,208 INFO L85 PathProgramCache]: Analyzing trace with hash 777302134, now seen corresponding path program 18 times [2022-02-10 22:30:17,208 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:17,208 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989797121] [2022-02-10 22:30:17,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:17,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:18,282 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:18,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989797121] [2022-02-10 22:30:18,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989797121] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:30:18,282 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877982169] [2022-02-10 22:30:18,282 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:30:18,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:30:18,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:30:18,284 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:30:18,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-02-10 22:30:18,602 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:30:18,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:30:18,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:30:18,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:30:19,476 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:30:19,477 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 30 treesize of output 22 [2022-02-10 22:30:20,004 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:20,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:30:24,638 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:30:24,638 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:30:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:24,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877982169] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:30:24,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:30:24,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-02-10 22:30:24,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071865233] [2022-02-10 22:30:24,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:30:24,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:30:24,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:30:24,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=386, Invalid=8540, Unknown=4, NotChecked=0, Total=8930 [2022-02-10 22:30:24,928 INFO L87 Difference]: Start difference. First operand 35053 states and 96908 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:30:39,943 INFO L93 Difference]: Finished difference Result 89147 states and 244269 transitions. [2022-02-10 22:30:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-02-10 22:30:39,943 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:30:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:30:40,143 INFO L225 Difference]: With dead ends: 89147 [2022-02-10 22:30:40,143 INFO L226 Difference]: Without dead ends: 88839 [2022-02-10 22:30:40,144 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8949 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=4185, Invalid=32483, Unknown=4, NotChecked=0, Total=36672 [2022-02-10 22:30:40,144 INFO L934 BasicCegarLoop]: 940 mSDtfsCounter, 9098 mSDsluCounter, 37581 mSDsCounter, 0 mSdLazyCounter, 8462 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9098 SdHoareTripleChecker+Valid, 38045 SdHoareTripleChecker+Invalid, 9095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 8462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 427 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:30:40,144 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [9098 Valid, 38045 Invalid, 9095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [206 Valid, 8462 Invalid, 0 Unknown, 427 Unchecked, 3.7s Time] [2022-02-10 22:30:40,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88839 states. [2022-02-10 22:30:41,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88839 to 35147. [2022-02-10 22:30:41,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35147 states, 35146 states have (on average 2.7644966710294203) internal successors, (97161), 35146 states have internal predecessors, (97161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:41,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35147 states to 35147 states and 97161 transitions. [2022-02-10 22:30:41,186 INFO L78 Accepts]: Start accepts. Automaton has 35147 states and 97161 transitions. Word has length 283 [2022-02-10 22:30:41,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:30:41,186 INFO L470 AbstractCegarLoop]: Abstraction has 35147 states and 97161 transitions. [2022-02-10 22:30:41,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:30:41,186 INFO L276 IsEmpty]: Start isEmpty. Operand 35147 states and 97161 transitions. [2022-02-10 22:30:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:30:41,238 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:30:41,238 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:30:41,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-02-10 22:30:41,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:30:41,451 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:30:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:30:41,452 INFO L85 PathProgramCache]: Analyzing trace with hash 406115260, now seen corresponding path program 19 times [2022-02-10 22:30:41,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:30:41,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231171434] [2022-02-10 22:30:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:30:41,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:30:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:42,824 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:42,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:30:42,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231171434] [2022-02-10 22:30:42,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231171434] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:30:42,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016832745] [2022-02-10 22:30:42,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:30:42,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:30:42,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:30:42,826 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:30:42,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-02-10 22:30:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:30:43,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:30:43,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:30:44,078 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:30:44,079 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 30 treesize of output 22 [2022-02-10 22:30:44,727 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:44,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:30:51,360 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:30:51,361 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:30:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:30:51,570 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016832745] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:30:51,570 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:30:51,570 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-02-10 22:30:51,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106451168] [2022-02-10 22:30:51,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:30:51,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:30:51,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:30:51,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:30:51,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=8532, Unknown=6, NotChecked=0, Total=8930 [2022-02-10 22:30:51,572 INFO L87 Difference]: Start difference. First operand 35147 states and 97161 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:03,236 INFO L93 Difference]: Finished difference Result 91847 states and 251927 transitions. [2022-02-10 22:31:03,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-10 22:31:03,236 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:31:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:03,410 INFO L225 Difference]: With dead ends: 91847 [2022-02-10 22:31:03,410 INFO L226 Difference]: Without dead ends: 91730 [2022-02-10 22:31:03,411 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 564 SyntacticMatches, 16 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6728 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=2852, Invalid=23224, Unknown=6, NotChecked=0, Total=26082 [2022-02-10 22:31:03,412 INFO L934 BasicCegarLoop]: 972 mSDtfsCounter, 8942 mSDsluCounter, 46680 mSDsCounter, 0 mSdLazyCounter, 10712 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8942 SdHoareTripleChecker+Valid, 46829 SdHoareTripleChecker+Invalid, 11581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 10712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 815 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:03,412 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8942 Valid, 46829 Invalid, 11581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 10712 Invalid, 0 Unknown, 815 Unchecked, 3.9s Time] [2022-02-10 22:31:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91730 states. [2022-02-10 22:31:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91730 to 35390. [2022-02-10 22:31:04,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35390 states, 35389 states have (on average 2.7643335499731556) internal successors, (97827), 35389 states have internal predecessors, (97827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35390 states to 35390 states and 97827 transitions. [2022-02-10 22:31:04,412 INFO L78 Accepts]: Start accepts. Automaton has 35390 states and 97827 transitions. Word has length 283 [2022-02-10 22:31:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:04,412 INFO L470 AbstractCegarLoop]: Abstraction has 35390 states and 97827 transitions. [2022-02-10 22:31:04,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:04,412 INFO L276 IsEmpty]: Start isEmpty. Operand 35390 states and 97827 transitions. [2022-02-10 22:31:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:31:04,455 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:04,455 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:04,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-02-10 22:31:04,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:31:04,672 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:04,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:04,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1870527642, now seen corresponding path program 20 times [2022-02-10 22:31:04,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:04,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709415588] [2022-02-10 22:31:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:04,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:05,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:05,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709415588] [2022-02-10 22:31:05,852 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709415588] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:31:05,852 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822375347] [2022-02-10 22:31:05,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:31:05,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:31:05,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:31:05,853 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:31:05,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-02-10 22:31:06,048 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:31:06,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:31:06,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:31:06,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:31:06,797 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:31:06,797 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 30 treesize of output 26 [2022-02-10 22:31:07,728 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:07,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:31:11,626 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:31:11,626 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:31:11,813 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:11,814 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822375347] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:31:11,814 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:31:11,814 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 36, 31] total 100 [2022-02-10 22:31:11,814 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629697851] [2022-02-10 22:31:11,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:31:11,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2022-02-10 22:31:11,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:11,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2022-02-10 22:31:11,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=426, Invalid=9471, Unknown=3, NotChecked=0, Total=9900 [2022-02-10 22:31:11,817 INFO L87 Difference]: Start difference. First operand 35390 states and 97827 transitions. Second operand has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:25,352 INFO L93 Difference]: Finished difference Result 95359 states and 263179 transitions. [2022-02-10 22:31:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-10 22:31:25,352 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:31:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:25,552 INFO L225 Difference]: With dead ends: 95359 [2022-02-10 22:31:25,552 INFO L226 Difference]: Without dead ends: 95041 [2022-02-10 22:31:25,553 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 581 SyntacticMatches, 3 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9153 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=4121, Invalid=31786, Unknown=3, NotChecked=0, Total=35910 [2022-02-10 22:31:25,554 INFO L934 BasicCegarLoop]: 930 mSDtfsCounter, 9422 mSDsluCounter, 41567 mSDsCounter, 0 mSdLazyCounter, 9140 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9422 SdHoareTripleChecker+Valid, 41470 SdHoareTripleChecker+Invalid, 11394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 9140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2114 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:25,554 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [9422 Valid, 41470 Invalid, 11394 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [140 Valid, 9140 Invalid, 0 Unknown, 2114 Unchecked, 3.8s Time] [2022-02-10 22:31:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95041 states. [2022-02-10 22:31:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95041 to 35524. [2022-02-10 22:31:26,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35524 states, 35523 states have (on average 2.764434310165245) internal successors, (98201), 35523 states have internal predecessors, (98201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:26,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35524 states to 35524 states and 98201 transitions. [2022-02-10 22:31:26,666 INFO L78 Accepts]: Start accepts. Automaton has 35524 states and 98201 transitions. Word has length 283 [2022-02-10 22:31:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:26,666 INFO L470 AbstractCegarLoop]: Abstraction has 35524 states and 98201 transitions. [2022-02-10 22:31:26,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 100 states have (on average 5.63) internal successors, (563), 100 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 35524 states and 98201 transitions. [2022-02-10 22:31:26,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:31:26,716 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:26,716 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:26,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-02-10 22:31:26,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-02-10 22:31:26,929 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:26,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1087604220, now seen corresponding path program 21 times [2022-02-10 22:31:26,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:26,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600908237] [2022-02-10 22:31:26,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:26,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:27,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:28,119 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:28,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:28,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600908237] [2022-02-10 22:31:28,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600908237] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:31:28,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799571354] [2022-02-10 22:31:28,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 22:31:28,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:31:28,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:31:28,120 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:31:28,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-02-10 22:31:28,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-10 22:31:28,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:31:28,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:31:28,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:31:29,020 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:31:29,020 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 30 treesize of output 22 [2022-02-10 22:31:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:29,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:31:34,411 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:31:34,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:31:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:34,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799571354] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:31:34,601 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:31:34,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 41, 31] total 96 [2022-02-10 22:31:34,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527034480] [2022-02-10 22:31:34,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:31:34,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-10 22:31:34,602 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-10 22:31:34,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=8721, Unknown=4, NotChecked=0, Total=9120 [2022-02-10 22:31:34,603 INFO L87 Difference]: Start difference. First operand 35524 states and 98201 transitions. Second operand has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:31:45,306 INFO L93 Difference]: Finished difference Result 99994 states and 276294 transitions. [2022-02-10 22:31:45,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-10 22:31:45,306 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:31:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:31:45,529 INFO L225 Difference]: With dead ends: 99994 [2022-02-10 22:31:45,529 INFO L226 Difference]: Without dead ends: 99849 [2022-02-10 22:31:45,530 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 753 GetRequests, 580 SyntacticMatches, 4 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7347 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=2752, Invalid=26314, Unknown=4, NotChecked=0, Total=29070 [2022-02-10 22:31:45,530 INFO L934 BasicCegarLoop]: 1008 mSDtfsCounter, 8533 mSDsluCounter, 47005 mSDsCounter, 0 mSdLazyCounter, 9824 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8533 SdHoareTripleChecker+Valid, 47342 SdHoareTripleChecker+Invalid, 11846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 9824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1965 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:31:45,530 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8533 Valid, 47342 Invalid, 11846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 9824 Invalid, 0 Unknown, 1965 Unchecked, 3.7s Time] [2022-02-10 22:31:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99849 states. [2022-02-10 22:31:46,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99849 to 36968. [2022-02-10 22:31:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36968 states, 36967 states have (on average 2.76557470176103) internal successors, (102235), 36967 states have internal predecessors, (102235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36968 states to 36968 states and 102235 transitions. [2022-02-10 22:31:46,907 INFO L78 Accepts]: Start accepts. Automaton has 36968 states and 102235 transitions. Word has length 283 [2022-02-10 22:31:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:31:46,907 INFO L470 AbstractCegarLoop]: Abstraction has 36968 states and 102235 transitions. [2022-02-10 22:31:46,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.364583333333333) internal successors, (515), 96 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:31:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 36968 states and 102235 transitions. [2022-02-10 22:31:46,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:31:46,956 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:31:46,956 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:31:46,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-02-10 22:31:47,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-02-10 22:31:47,166 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:31:47,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:31:47,166 INFO L85 PathProgramCache]: Analyzing trace with hash -365738120, now seen corresponding path program 22 times [2022-02-10 22:31:47,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:31:47,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027842038] [2022-02-10 22:31:47,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:31:47,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:31:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:31:48,343 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:48,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:31:48,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027842038] [2022-02-10 22:31:48,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027842038] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:31:48,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634376276] [2022-02-10 22:31:48,343 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 22:31:48,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:31:48,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:31:48,344 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:31:48,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-02-10 22:31:48,561 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 22:31:48,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:31:48,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-10 22:31:48,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:31:49,285 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:31:49,286 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 30 treesize of output 26 [2022-02-10 22:31:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:50,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:31:56,265 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:31:56,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:31:56,438 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:31:56,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634376276] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:31:56,438 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:31:56,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 31, 31] total 96 [2022-02-10 22:31:56,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520217263] [2022-02-10 22:31:56,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:31:56,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-02-10 22:31:56,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:31:56,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-02-10 22:31:56,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=371, Invalid=8745, Unknown=4, NotChecked=0, Total=9120 [2022-02-10 22:31:56,440 INFO L87 Difference]: Start difference. First operand 36968 states and 102235 transitions. Second operand has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:08,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:08,955 INFO L93 Difference]: Finished difference Result 94484 states and 260241 transitions. [2022-02-10 22:32:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-02-10 22:32:08,955 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 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 283 [2022-02-10 22:32:08,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:09,151 INFO L225 Difference]: With dead ends: 94484 [2022-02-10 22:32:09,151 INFO L226 Difference]: Without dead ends: 94339 [2022-02-10 22:32:09,153 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 589 SyntacticMatches, 9 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8409 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=3224, Invalid=30812, Unknown=4, NotChecked=0, Total=34040 [2022-02-10 22:32:09,156 INFO L934 BasicCegarLoop]: 1033 mSDtfsCounter, 10214 mSDsluCounter, 42511 mSDsCounter, 0 mSdLazyCounter, 9021 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10214 SdHoareTripleChecker+Valid, 42949 SdHoareTripleChecker+Invalid, 11587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 9021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2469 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:09,157 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [10214 Valid, 42949 Invalid, 11587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [97 Valid, 9021 Invalid, 0 Unknown, 2469 Unchecked, 3.7s Time] [2022-02-10 22:32:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94339 states. [2022-02-10 22:32:10,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94339 to 37410. [2022-02-10 22:32:10,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37410 states, 37409 states have (on average 2.759015210243524) internal successors, (103212), 37409 states have internal predecessors, (103212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37410 states to 37410 states and 103212 transitions. [2022-02-10 22:32:10,397 INFO L78 Accepts]: Start accepts. Automaton has 37410 states and 103212 transitions. Word has length 283 [2022-02-10 22:32:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:10,398 INFO L470 AbstractCegarLoop]: Abstraction has 37410 states and 103212 transitions. [2022-02-10 22:32:10,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 5.375) internal successors, (516), 96 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 37410 states and 103212 transitions. [2022-02-10 22:32:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:32:10,449 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:10,450 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:10,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-02-10 22:32:10,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-02-10 22:32:10,651 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1797360222, now seen corresponding path program 23 times [2022-02-10 22:32:10,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:10,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699916300] [2022-02-10 22:32:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:10,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:32:12,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:12,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699916300] [2022-02-10 22:32:12,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699916300] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:32:12,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392213481] [2022-02-10 22:32:12,053 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-10 22:32:12,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:32:12,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:32:12,055 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:32:12,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-02-10 22:32:12,300 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-10 22:32:12,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:32:12,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:32:12,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:32:13,397 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:32:13,398 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 30 treesize of output 22 [2022-02-10 22:32:14,107 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:32:14,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:32:18,069 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:32:18,069 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:32:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:32:18,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392213481] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:32:18,237 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:32:18,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-02-10 22:32:18,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950312742] [2022-02-10 22:32:18,238 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:32:18,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:32:18,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:18,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:32:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=8544, Unknown=3, NotChecked=0, Total=8930 [2022-02-10 22:32:18,239 INFO L87 Difference]: Start difference. First operand 37410 states and 103212 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:47,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:47,360 INFO L93 Difference]: Finished difference Result 134840 states and 373006 transitions. [2022-02-10 22:32:47,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2022-02-10 22:32:47,360 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:32:47,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:47,653 INFO L225 Difference]: With dead ends: 134840 [2022-02-10 22:32:47,653 INFO L226 Difference]: Without dead ends: 134398 [2022-02-10 22:32:47,656 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 645 SyntacticMatches, 1 SemanticMatches, 272 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22073 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=8117, Invalid=66682, Unknown=3, NotChecked=0, Total=74802 [2022-02-10 22:32:47,657 INFO L934 BasicCegarLoop]: 1086 mSDtfsCounter, 11611 mSDsluCounter, 54967 mSDsCounter, 0 mSdLazyCounter, 11982 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11611 SdHoareTripleChecker+Valid, 55196 SdHoareTripleChecker+Invalid, 13679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 11982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1505 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:47,657 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [11611 Valid, 55196 Invalid, 13679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [192 Valid, 11982 Invalid, 0 Unknown, 1505 Unchecked, 5.0s Time] [2022-02-10 22:32:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134398 states. [2022-02-10 22:32:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134398 to 37526. [2022-02-10 22:32:48,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37526 states, 37525 states have (on average 2.7585076615589608) internal successors, (103513), 37525 states have internal predecessors, (103513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37526 states to 37526 states and 103513 transitions. [2022-02-10 22:32:49,053 INFO L78 Accepts]: Start accepts. Automaton has 37526 states and 103513 transitions. Word has length 283 [2022-02-10 22:32:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:49,053 INFO L470 AbstractCegarLoop]: Abstraction has 37526 states and 103513 transitions. [2022-02-10 22:32:49,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 37526 states and 103513 transitions. [2022-02-10 22:32:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:32:49,105 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:49,105 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:49,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-02-10 22:32:49,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:32:49,326 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:49,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:49,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1587889104, now seen corresponding path program 1 times [2022-02-10 22:32:49,327 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:49,327 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794735520] [2022-02-10 22:32:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:49,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:32:49,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:49,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794735520] [2022-02-10 22:32:49,377 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794735520] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:32:49,377 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141987213] [2022-02-10 22:32:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:49,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:32:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:32:49,378 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:32:49,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-02-10 22:32:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:49,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-10 22:32:49,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:32:49,940 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:32:49,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:32:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-10 22:32:50,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141987213] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:32:50,254 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:32:50,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-02-10 22:32:50,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448602260] [2022-02-10 22:32:50,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:32:50,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-10 22:32:50,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:32:50,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-10 22:32:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-10 22:32:50,255 INFO L87 Difference]: Start difference. First operand 37526 states and 103513 transitions. Second operand has 11 states, 11 states have (on average 27.363636363636363) internal successors, (301), 11 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:32:50,961 INFO L93 Difference]: Finished difference Result 79207 states and 216676 transitions. [2022-02-10 22:32:50,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-10 22:32:50,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 27.363636363636363) internal successors, (301), 11 states have internal predecessors, (301), 0 states have call successors, (0), 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 283 [2022-02-10 22:32:50,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:32:51,214 INFO L225 Difference]: With dead ends: 79207 [2022-02-10 22:32:51,214 INFO L226 Difference]: Without dead ends: 79179 [2022-02-10 22:32:51,215 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 565 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2022-02-10 22:32:51,215 INFO L934 BasicCegarLoop]: 397 mSDtfsCounter, 1111 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 22:32:51,215 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2959 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 22:32:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79179 states. [2022-02-10 22:32:52,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79179 to 67002. [2022-02-10 22:32:52,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67002 states, 67001 states have (on average 2.761794600080596) internal successors, (185043), 67001 states have internal predecessors, (185043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67002 states to 67002 states and 185043 transitions. [2022-02-10 22:32:52,850 INFO L78 Accepts]: Start accepts. Automaton has 67002 states and 185043 transitions. Word has length 283 [2022-02-10 22:32:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:32:52,850 INFO L470 AbstractCegarLoop]: Abstraction has 67002 states and 185043 transitions. [2022-02-10 22:32:52,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 27.363636363636363) internal successors, (301), 11 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:32:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 67002 states and 185043 transitions. [2022-02-10 22:32:52,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:32:52,918 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:32:52,918 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:32:52,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-02-10 22:32:53,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2022-02-10 22:32:53,128 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:32:53,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:32:53,128 INFO L85 PathProgramCache]: Analyzing trace with hash 10754922, now seen corresponding path program 24 times [2022-02-10 22:32:53,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:32:53,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002387716] [2022-02-10 22:32:53,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:32:53,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:32:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:32:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:32:54,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:32:54,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002387716] [2022-02-10 22:32:54,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002387716] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:32:54,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143333898] [2022-02-10 22:32:54,710 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-10 22:32:54,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:32:54,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:32:54,711 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:32:54,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-02-10 22:32:54,923 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-02-10 22:32:54,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:32:54,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-10 22:32:54,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:32:55,748 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:32:55,749 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 30 treesize of output 22 [2022-02-10 22:32:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:32:56,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:33:00,980 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:33:00,981 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:33:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:01,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143333898] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:33:01,166 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:33:01,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 31] total 95 [2022-02-10 22:33:01,166 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351856122] [2022-02-10 22:33:01,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:33:01,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-10 22:33:01,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:01,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-10 22:33:01,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=384, Invalid=8542, Unknown=4, NotChecked=0, Total=8930 [2022-02-10 22:33:01,168 INFO L87 Difference]: Start difference. First operand 67002 states and 185043 transitions. Second operand has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:10,355 INFO L93 Difference]: Finished difference Result 103023 states and 283301 transitions. [2022-02-10 22:33:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-10 22:33:10,356 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 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 283 [2022-02-10 22:33:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:10,586 INFO L225 Difference]: With dead ends: 103023 [2022-02-10 22:33:10,586 INFO L226 Difference]: Without dead ends: 102878 [2022-02-10 22:33:10,587 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 565 SyntacticMatches, 2 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6150 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2388, Invalid=22414, Unknown=4, NotChecked=0, Total=24806 [2022-02-10 22:33:10,588 INFO L934 BasicCegarLoop]: 939 mSDtfsCounter, 10538 mSDsluCounter, 41139 mSDsCounter, 0 mSdLazyCounter, 9227 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10538 SdHoareTripleChecker+Valid, 41377 SdHoareTripleChecker+Invalid, 11290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 9227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1996 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:10,588 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [10538 Valid, 41377 Invalid, 11290 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 9227 Invalid, 0 Unknown, 1996 Unchecked, 3.8s Time] [2022-02-10 22:33:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102878 states. [2022-02-10 22:33:11,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102878 to 66668. [2022-02-10 22:33:12,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66668 states, 66667 states have (on average 2.765176174119129) internal successors, (184346), 66667 states have internal predecessors, (184346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:12,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66668 states to 66668 states and 184346 transitions. [2022-02-10 22:33:12,207 INFO L78 Accepts]: Start accepts. Automaton has 66668 states and 184346 transitions. Word has length 283 [2022-02-10 22:33:12,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:12,207 INFO L470 AbstractCegarLoop]: Abstraction has 66668 states and 184346 transitions. [2022-02-10 22:33:12,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 5.421052631578948) internal successors, (515), 95 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:12,207 INFO L276 IsEmpty]: Start isEmpty. Operand 66668 states and 184346 transitions. [2022-02-10 22:33:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:33:12,281 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:12,281 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:12,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-02-10 22:33:12,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2022-02-10 22:33:12,500 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:12,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1420757776, now seen corresponding path program 25 times [2022-02-10 22:33:12,500 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:12,500 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112539844] [2022-02-10 22:33:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:12,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:14,318 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:14,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:14,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112539844] [2022-02-10 22:33:14,319 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112539844] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:33:14,319 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392672442] [2022-02-10 22:33:14,319 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-10 22:33:14,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:33:14,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:33:14,320 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:33:14,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-02-10 22:33:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:14,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:33:14,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:33:15,234 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:33:15,234 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 30 treesize of output 26 [2022-02-10 22:33:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:15,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:33:19,756 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:33:19,757 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:33:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:19,967 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392672442] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:33:19,967 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:33:19,967 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 36, 31] total 99 [2022-02-10 22:33:19,967 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420157935] [2022-02-10 22:33:19,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:33:19,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-10 22:33:19,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:19,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-10 22:33:19,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=9304, Unknown=3, NotChecked=0, Total=9702 [2022-02-10 22:33:19,969 INFO L87 Difference]: Start difference. First operand 66668 states and 184346 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:32,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:33:32,754 INFO L93 Difference]: Finished difference Result 102520 states and 282092 transitions. [2022-02-10 22:33:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-10 22:33:32,755 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:33:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 22:33:33,006 INFO L225 Difference]: With dead ends: 102520 [2022-02-10 22:33:33,006 INFO L226 Difference]: Without dead ends: 102140 [2022-02-10 22:33:33,008 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 579 SyntacticMatches, 3 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7587 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=2905, Invalid=27892, Unknown=3, NotChecked=0, Total=30800 [2022-02-10 22:33:33,008 INFO L934 BasicCegarLoop]: 1075 mSDtfsCounter, 8902 mSDsluCounter, 48301 mSDsCounter, 0 mSdLazyCounter, 10342 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8902 SdHoareTripleChecker+Valid, 48556 SdHoareTripleChecker+Invalid, 13729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 10342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3328 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-02-10 22:33:33,008 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [8902 Valid, 48556 Invalid, 13729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 10342 Invalid, 0 Unknown, 3328 Unchecked, 4.4s Time] [2022-02-10 22:33:33,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102140 states. [2022-02-10 22:33:34,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102140 to 66738. [2022-02-10 22:33:34,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66738 states, 66737 states have (on average 2.7642986649085217) internal successors, (184481), 66737 states have internal predecessors, (184481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:34,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66738 states to 66738 states and 184481 transitions. [2022-02-10 22:33:34,598 INFO L78 Accepts]: Start accepts. Automaton has 66738 states and 184481 transitions. Word has length 283 [2022-02-10 22:33:34,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 22:33:34,599 INFO L470 AbstractCegarLoop]: Abstraction has 66738 states and 184481 transitions. [2022-02-10 22:33:34,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:33:34,599 INFO L276 IsEmpty]: Start isEmpty. Operand 66738 states and 184481 transitions. [2022-02-10 22:33:34,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-02-10 22:33:34,665 INFO L507 BasicCegarLoop]: Found error trace [2022-02-10 22:33:34,665 INFO L515 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 22:33:34,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-02-10 22:33:34,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:33:34,886 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 22:33:34,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 22:33:34,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1533891062, now seen corresponding path program 26 times [2022-02-10 22:33:34,899 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 22:33:34,900 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668835450] [2022-02-10 22:33:34,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 22:33:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 22:33:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 22:33:36,786 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:36,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 22:33:36,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668835450] [2022-02-10 22:33:36,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668835450] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 22:33:36,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236025001] [2022-02-10 22:33:36,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 22:33:36,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:33:36,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 22:33:36,788 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 22:33:36,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-02-10 22:33:36,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 22:33:36,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 22:33:36,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-10 22:33:37,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 22:33:37,924 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-10 22:33:37,924 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 30 treesize of output 26 [2022-02-10 22:33:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:38,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 22:33:43,841 INFO L353 Elim1Store]: treesize reduction 42, result has 50.6 percent of original size [2022-02-10 22:33:43,842 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 98 treesize of output 68 [2022-02-10 22:33:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-02-10 22:33:44,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236025001] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 22:33:44,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 22:33:44,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 36, 31] total 99 [2022-02-10 22:33:44,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687320281] [2022-02-10 22:33:44,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 22:33:44,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-10 22:33:44,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 22:33:44,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-10 22:33:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=9303, Unknown=4, NotChecked=0, Total=9702 [2022-02-10 22:33:44,077 INFO L87 Difference]: Start difference. First operand 66738 states and 184481 transitions. Second operand has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 22:34:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 22:34:02,072 INFO L93 Difference]: Finished difference Result 124478 states and 343272 transitions. [2022-02-10 22:34:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-02-10 22:34:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 99 states have (on average 5.686868686868687) internal successors, (563), 99 states have internal predecessors, (563), 0 states have call successors, (0), 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 283 [2022-02-10 22:34:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2022-02-10 22:34:02,521 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 22:34:02,522 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 22:34:02,532 INFO L225 Difference]: With dead ends: 124478 [2022-02-10 22:34:02,532 INFO L226 Difference]: Without dead ends: 124117 [2022-02-10 22:34:02,533 INFO L933 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 620 SyntacticMatches, 2 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12193 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=4246, Invalid=42190, Unknown=4, NotChecked=0, Total=46440 [2022-02-10 22:34:02,534 INFO L934 BasicCegarLoop]: 1153 mSDtfsCounter, 11900 mSDsluCounter, 54975 mSDsCounter, 0 mSdLazyCounter, 14881 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11900 SdHoareTripleChecker+Valid, 55370 SdHoareTripleChecker+Invalid, 16687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 14881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1712 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-02-10 22:34:02,534 INFO L935 BasicCegarLoop]: SdHoareTripleChecker [11900 Valid, 55370 Invalid, 16687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 14881 Invalid, 0 Unknown, 1712 Unchecked, 6.3s Time] [2022-02-10 22:34:02,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124117 states. [2022-02-10 22:34:02,694 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-02-10 22:34:02,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-02-10 22:34:02,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 22:34:02,908 WARN L594 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2022-02-10 22:34:02,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 22:34:02,909 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 22:34:02,912 INFO L733 BasicCegarLoop]: Path program histogram: [26, 16, 10, 5, 1, 1, 1, 1, 1] [2022-02-10 22:34:02,913 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 22:34:02,913 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 22:34:02,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:34:02 BasicIcfg [2022-02-10 22:34:02,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 22:34:02,915 INFO L158 Benchmark]: Toolchain (without parser) took 830972.79ms. Allocated memory was 196.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 142.4MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2022-02-10 22:34:02,915 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 22:34:02,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.12ms. Allocated memory is still 196.1MB. Free memory was 142.3MB in the beginning and 167.5MB in the end (delta: -25.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. [2022-02-10 22:34:02,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.76ms. Allocated memory is still 196.1MB. Free memory was 167.5MB in the beginning and 165.1MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-10 22:34:02,916 INFO L158 Benchmark]: Boogie Preprocessor took 20.95ms. Allocated memory is still 196.1MB. Free memory was 165.1MB in the beginning and 163.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 22:34:02,916 INFO L158 Benchmark]: RCFGBuilder took 522.68ms. Allocated memory is still 196.1MB. Free memory was 163.3MB in the beginning and 145.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-02-10 22:34:02,916 INFO L158 Benchmark]: TraceAbstraction took 830156.95ms. Allocated memory was 196.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 144.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2022-02-10 22:34:02,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 196.1MB. Free memory is still 158.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 240.12ms. Allocated memory is still 196.1MB. Free memory was 142.3MB in the beginning and 167.5MB in the end (delta: -25.2MB). Peak memory consumption was 9.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.76ms. Allocated memory is still 196.1MB. Free memory was 167.5MB in the beginning and 165.1MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.95ms. Allocated memory is still 196.1MB. Free memory was 165.1MB in the beginning and 163.3MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 522.68ms. Allocated memory is still 196.1MB. Free memory was 163.3MB in the beginning and 145.2MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 830156.95ms. Allocated memory was 196.1MB in the beginning and 3.9GB in the end (delta: 3.7GB). Free memory was 144.5MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 358 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 830.0s, OverallIterations: 62, TraceHistogramMax: 5, PathProgramHistogramMax: 26, EmptinessCheckTime: 2.1s, AutomataDifference: 561.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 293590 SdHoareTripleChecker+Valid, 133.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 293590 mSDsluCounter, 1431055 SdHoareTripleChecker+Invalid, 113.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 53957 IncrementalHoareTripleChecker+Unchecked, 1408560 mSDsCounter, 4190 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 322154 IncrementalHoareTripleChecker+Invalid, 380301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4190 mSolverCounterUnsat, 44568 mSDtfsCounter, 322154 mSolverCounterSat, 2.9s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25403 GetRequests, 18762 SyntacticMatches, 175 SemanticMatches, 6466 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 808285 ImplicationChecksByTransitivity, 512.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67002occurred in iteration=59, InterpolantAutomatonStates: 4063, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 43.7s AutomataMinimizationTime, 62 MinimizatonAttempts, 2052348 StatesRemovedByMinimization, 58 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 205.9s InterpolantComputationTime, 24339 NumberOfCodeBlocks, 23725 NumberOfCodeBlocksAsserted, 131 NumberOfCheckSat, 32489 ConstructedInterpolants, 80 QuantifiedInterpolants, 263107 SizeOfPredicates, 1200 NumberOfNonLiveVariables, 15570 ConjunctsInSsa, 2168 ConjunctsInUnsatCore, 124 InterpolantComputations, 32 PerfectInterpolantSequences, 16944/17229 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown