/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:17:10,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:17:10,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:17:10,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:17:10,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:17:10,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:17:10,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:17:10,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-15 14:17:10,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:17:10,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:17:10,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:17:10,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:17:10,878 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:17:10,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:17:10,879 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:17:10,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:17:10,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:17:10,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:17:10,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:17:10,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:17:11,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:17:11,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:17:11,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:17:11,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:17:11,048 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:17:11,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2022-03-15 14:17:11,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e61e82a6/48c21b8c87ff433f951cbb45ae792351/FLAG707f7d2f8 [2022-03-15 14:17:11,481 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:17:11,481 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c [2022-03-15 14:17:11,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e61e82a6/48c21b8c87ff433f951cbb45ae792351/FLAG707f7d2f8 [2022-03-15 14:17:11,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e61e82a6/48c21b8c87ff433f951cbb45ae792351 [2022-03-15 14:17:11,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:17:11,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:17:11,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:17:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:17:11,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:17:11,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a48ec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11, skipping insertion in model container [2022-03-15 14:17:11,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:17:11,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:17:11,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2022-03-15 14:17:11,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:17:11,684 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:17:11,697 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-inc-subseq.wvr.c[2924,2937] [2022-03-15 14:17:11,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:17:11,707 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:17:11,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11 WrapperNode [2022-03-15 14:17:11,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:17:11,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:17:11,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:17:11,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:17:11,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,733 INFO L137 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 191 [2022-03-15 14:17:11,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:17:11,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:17:11,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:17:11,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:17:11,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:17:11,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:17:11,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:17:11,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:17:11,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (1/1) ... [2022-03-15 14:17:11,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:17:11,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:17:11,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 14:17:11,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 14:17:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:17:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:17:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:17:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:17:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:17:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:17:11,825 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:17:11,880 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:17:11,881 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:17:12,122 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:17:12,190 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:17:12,190 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 14:17:12,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:17:12 BoogieIcfgContainer [2022-03-15 14:17:12,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:17:12,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:17:12,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:17:12,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:17:12,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:17:11" (1/3) ... [2022-03-15 14:17:12,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac8c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:17:12, skipping insertion in model container [2022-03-15 14:17:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:17:11" (2/3) ... [2022-03-15 14:17:12,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac8c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:17:12, skipping insertion in model container [2022-03-15 14:17:12,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:17:12" (3/3) ... [2022-03-15 14:17:12,209 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-inc-subseq.wvr.c [2022-03-15 14:17:12,213 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:17:12,213 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:17:12,213 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:17:12,213 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:17:12,271 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,272 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,273 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,274 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,275 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,276 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,282 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,283 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:17:12,286 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-15 14:17:12,312 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:17:12,317 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 14:17:12,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-15 14:17:12,325 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 181 places, 189 transitions, 394 flow [2022-03-15 14:17:12,393 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 704 states, 703 states have (on average 2.52773826458037) internal successors, (1777), 703 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:12,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 704 states, 703 states have (on average 2.52773826458037) internal successors, (1777), 703 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:12,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-15 14:17:12,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:12,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:12,417 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:12,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash -7555604, now seen corresponding path program 1 times [2022-03-15 14:17:12,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:12,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631735386] [2022-03-15 14:17:12,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:12,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:12,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:17:12,628 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:12,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631735386] [2022-03-15 14:17:12,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631735386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:12,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:12,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:17:12,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997358516] [2022-03-15 14:17:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:12,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:17:12,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:12,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:17:12,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:17:12,672 INFO L87 Difference]: Start difference. First operand has 704 states, 703 states have (on average 2.52773826458037) internal successors, (1777), 703 states have internal predecessors, (1777), 0 states have call successors, (0), 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 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:12,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:12,712 INFO L93 Difference]: Finished difference Result 704 states and 1672 transitions. [2022-03-15 14:17:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:17:12,714 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-03-15 14:17:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:12,737 INFO L225 Difference]: With dead ends: 704 [2022-03-15 14:17:12,737 INFO L226 Difference]: Without dead ends: 698 [2022-03-15 14:17:12,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:17:12,740 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:12,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 161 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:17:12,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-03-15 14:17:12,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2022-03-15 14:17:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 2.3902439024390243) internal successors, (1666), 697 states have internal predecessors, (1666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:12,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1666 transitions. [2022-03-15 14:17:12,821 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1666 transitions. Word has length 132 [2022-03-15 14:17:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:12,822 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 1666 transitions. [2022-03-15 14:17:12,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 66.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1666 transitions. [2022-03-15 14:17:12,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-03-15 14:17:12,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:12,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:12,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:17:12,827 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 962025419, now seen corresponding path program 1 times [2022-03-15 14:17:12,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:12,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448864398] [2022-03-15 14:17:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:12,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:12,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:13,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:17:13,026 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:13,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448864398] [2022-03-15 14:17:13,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448864398] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:13,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:13,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:17:13,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832383528] [2022-03-15 14:17:13,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:13,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:17:13,027 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:13,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:17:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:17:13,028 INFO L87 Difference]: Start difference. First operand 698 states and 1666 transitions. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:13,151 INFO L93 Difference]: Finished difference Result 1118 states and 2818 transitions. [2022-03-15 14:17:13,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:17:13,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2022-03-15 14:17:13,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:13,160 INFO L225 Difference]: With dead ends: 1118 [2022-03-15 14:17:13,160 INFO L226 Difference]: Without dead ends: 1118 [2022-03-15 14:17:13,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-15 14:17:13,162 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 132 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:13,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 431 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:17:13,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2022-03-15 14:17:13,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 740. [2022-03-15 14:17:13,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 739 states have (on average 2.404600811907984) internal successors, (1777), 739 states have internal predecessors, (1777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1777 transitions. [2022-03-15 14:17:13,223 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1777 transitions. Word has length 132 [2022-03-15 14:17:13,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:13,227 INFO L470 AbstractCegarLoop]: Abstraction has 740 states and 1777 transitions. [2022-03-15 14:17:13,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,228 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1777 transitions. [2022-03-15 14:17:13,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-15 14:17:13,232 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:13,233 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:13,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:17:13,233 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:13,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:13,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1932159763, now seen corresponding path program 1 times [2022-03-15 14:17:13,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:13,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814074753] [2022-03-15 14:17:13,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:13,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:17:13,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:13,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814074753] [2022-03-15 14:17:13,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814074753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:13,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:13,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-03-15 14:17:13,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763541116] [2022-03-15 14:17:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:13,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 14:17:13,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:13,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 14:17:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:17:13,412 INFO L87 Difference]: Start difference. First operand 740 states and 1777 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:13,530 INFO L93 Difference]: Finished difference Result 1185 states and 2913 transitions. [2022-03-15 14:17:13,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:17:13,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2022-03-15 14:17:13,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:13,537 INFO L225 Difference]: With dead ends: 1185 [2022-03-15 14:17:13,537 INFO L226 Difference]: Without dead ends: 1124 [2022-03-15 14:17:13,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:17:13,542 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 318 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:13,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 484 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:17:13,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2022-03-15 14:17:13,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 741. [2022-03-15 14:17:13,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 740 states have (on average 2.402702702702703) internal successors, (1778), 740 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1778 transitions. [2022-03-15 14:17:13,561 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1778 transitions. Word has length 137 [2022-03-15 14:17:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:13,562 INFO L470 AbstractCegarLoop]: Abstraction has 741 states and 1778 transitions. [2022-03-15 14:17:13,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1778 transitions. [2022-03-15 14:17:13,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-03-15 14:17:13,564 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:13,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:13,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:17:13,565 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:13,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1113696768, now seen corresponding path program 1 times [2022-03-15 14:17:13,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:13,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13607290] [2022-03-15 14:17:13,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:13,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:17:13,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:13,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13607290] [2022-03-15 14:17:13,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13607290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:13,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:13,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:17:13,677 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746577311] [2022-03-15 14:17:13,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:13,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:17:13,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:13,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:17:13,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:17:13,678 INFO L87 Difference]: Start difference. First operand 741 states and 1778 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:13,732 INFO L93 Difference]: Finished difference Result 1101 states and 2768 transitions. [2022-03-15 14:17:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:17:13,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 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 144 [2022-03-15 14:17:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:13,736 INFO L225 Difference]: With dead ends: 1101 [2022-03-15 14:17:13,736 INFO L226 Difference]: Without dead ends: 918 [2022-03-15 14:17:13,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:17:13,744 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 19 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:13,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 483 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:17:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2022-03-15 14:17:13,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 800. [2022-03-15 14:17:13,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 2.430538172715895) internal successors, (1942), 799 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1942 transitions. [2022-03-15 14:17:13,761 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1942 transitions. Word has length 144 [2022-03-15 14:17:13,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:13,762 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1942 transitions. [2022-03-15 14:17:13,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,763 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1942 transitions. [2022-03-15 14:17:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-03-15 14:17:13,765 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:13,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:13,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 14:17:13,765 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:13,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1975010592, now seen corresponding path program 1 times [2022-03-15 14:17:13,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:13,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372067749] [2022-03-15 14:17:13,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:13,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:17:13,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:13,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372067749] [2022-03-15 14:17:13,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372067749] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:13,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:13,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:17:13,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389003242] [2022-03-15 14:17:13,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:13,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:17:13,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:17:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:17:13,864 INFO L87 Difference]: Start difference. First operand 800 states and 1942 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:13,906 INFO L93 Difference]: Finished difference Result 976 states and 2324 transitions. [2022-03-15 14:17:13,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:17:13,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2022-03-15 14:17:13,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:13,909 INFO L225 Difference]: With dead ends: 976 [2022-03-15 14:17:13,909 INFO L226 Difference]: Without dead ends: 898 [2022-03-15 14:17:13,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:17:13,910 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 36 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:13,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 524 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:17:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2022-03-15 14:17:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 880. [2022-03-15 14:17:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 879 states have (on average 2.4175199089874857) internal successors, (2125), 879 states have internal predecessors, (2125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 2125 transitions. [2022-03-15 14:17:13,926 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 2125 transitions. Word has length 149 [2022-03-15 14:17:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:13,926 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 2125 transitions. [2022-03-15 14:17:13,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 2125 transitions. [2022-03-15 14:17:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-15 14:17:13,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:13,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:13,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:17:13,928 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:13,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1498906467, now seen corresponding path program 1 times [2022-03-15 14:17:13,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:13,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967948727] [2022-03-15 14:17:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:13,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:14,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:17:14,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:14,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967948727] [2022-03-15 14:17:14,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967948727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:17:14,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:17:14,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:17:14,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236962146] [2022-03-15 14:17:14,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:17:14,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:17:14,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:14,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:17:14,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:17:14,033 INFO L87 Difference]: Start difference. First operand 880 states and 2125 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:14,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:14,110 INFO L93 Difference]: Finished difference Result 1065 states and 2473 transitions. [2022-03-15 14:17:14,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:17:14,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2022-03-15 14:17:14,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:14,115 INFO L225 Difference]: With dead ends: 1065 [2022-03-15 14:17:14,116 INFO L226 Difference]: Without dead ends: 886 [2022-03-15 14:17:14,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:17:14,117 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 107 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:14,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 632 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:17:14,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-03-15 14:17:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 881. [2022-03-15 14:17:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 880 states have (on average 2.415909090909091) internal successors, (2126), 880 states have internal predecessors, (2126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:14,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 2126 transitions. [2022-03-15 14:17:14,133 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 2126 transitions. Word has length 153 [2022-03-15 14:17:14,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:14,133 INFO L470 AbstractCegarLoop]: Abstraction has 881 states and 2126 transitions. [2022-03-15 14:17:14,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:14,134 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 2126 transitions. [2022-03-15 14:17:14,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:17:14,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:14,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:14,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:17:14,136 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:14,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:14,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1833342822, now seen corresponding path program 1 times [2022-03-15 14:17:14,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:14,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749385242] [2022-03-15 14:17:14,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:14,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:15,471 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:15,471 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749385242] [2022-03-15 14:17:15,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749385242] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:17:15,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161725099] [2022-03-15 14:17:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:15,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:17:15,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:17:15,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:17:15,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:17:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:15,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 56 conjunts are in the unsatisfiable core [2022-03-15 14:17:15,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:17:15,678 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:17:15,990 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:17:15,990 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:17:17,762 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:17:17,763 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-03-15 14:17:17,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-03-15 14:17:18,117 INFO L353 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2022-03-15 14:17:18,118 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-03-15 14:17:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:18,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:17:18,989 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:17:18,990 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 68 [2022-03-15 14:17:19,005 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-03-15 14:17:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:21,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161725099] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:17:21,513 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:17:21,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 26, 27] total 70 [2022-03-15 14:17:21,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689532228] [2022-03-15 14:17:21,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:17:21,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-03-15 14:17:21,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:21,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-03-15 14:17:21,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=481, Invalid=4346, Unknown=3, NotChecked=0, Total=4830 [2022-03-15 14:17:21,515 INFO L87 Difference]: Start difference. First operand 881 states and 2126 transitions. Second operand has 70 states, 70 states have (on average 5.8428571428571425) internal successors, (409), 70 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:30,381 INFO L93 Difference]: Finished difference Result 3041 states and 7539 transitions. [2022-03-15 14:17:30,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2022-03-15 14:17:30,381 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 5.8428571428571425) internal successors, (409), 70 states have internal predecessors, (409), 0 states have call successors, (0), 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 160 [2022-03-15 14:17:30,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:30,392 INFO L225 Difference]: With dead ends: 3041 [2022-03-15 14:17:30,392 INFO L226 Difference]: Without dead ends: 3032 [2022-03-15 14:17:30,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 294 SyntacticMatches, 11 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6073 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=3004, Invalid=18454, Unknown=4, NotChecked=0, Total=21462 [2022-03-15 14:17:30,397 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 3177 mSDsluCounter, 6224 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3177 SdHoareTripleChecker+Valid, 6056 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 889 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:30,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3177 Valid, 6056 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2291 Invalid, 0 Unknown, 889 Unchecked, 1.1s Time] [2022-03-15 14:17:30,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-03-15 14:17:30,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 1298. [2022-03-15 14:17:30,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1297 states have (on average 2.3554356206630684) internal successors, (3055), 1297 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:30,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 3055 transitions. [2022-03-15 14:17:30,430 INFO L78 Accepts]: Start accepts. Automaton has 1298 states and 3055 transitions. Word has length 160 [2022-03-15 14:17:30,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:30,430 INFO L470 AbstractCegarLoop]: Abstraction has 1298 states and 3055 transitions. [2022-03-15 14:17:30,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 5.8428571428571425) internal successors, (409), 70 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 1298 states and 3055 transitions. [2022-03-15 14:17:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:17:30,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:30,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:30,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 14:17:30,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:17:30,651 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:30,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1185429200, now seen corresponding path program 2 times [2022-03-15 14:17:30,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:30,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709110445] [2022-03-15 14:17:30,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:30,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:31,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:31,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:31,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709110445] [2022-03-15 14:17:31,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709110445] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:17:31,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563446566] [2022-03-15 14:17:31,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:17:31,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:17:31,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:17:31,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:17:31,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:17:31,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:17:31,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:17:31,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 60 conjunts are in the unsatisfiable core [2022-03-15 14:17:31,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:17:31,695 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:17:31,969 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:17:31,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:17:33,228 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:17:33,229 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-03-15 14:17:33,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-03-15 14:17:33,450 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-03-15 14:17:33,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:33,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:17:34,101 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:17:34,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 68 [2022-03-15 14:17:34,106 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-03-15 14:17:36,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:36,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563446566] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:17:36,450 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:17:36,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 27] total 69 [2022-03-15 14:17:36,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696028173] [2022-03-15 14:17:36,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:17:36,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-03-15 14:17:36,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:36,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-03-15 14:17:36,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=438, Invalid=4254, Unknown=0, NotChecked=0, Total=4692 [2022-03-15 14:17:36,453 INFO L87 Difference]: Start difference. First operand 1298 states and 3055 transitions. Second operand has 69 states, 69 states have (on average 5.971014492753623) internal successors, (412), 69 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:47,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:17:47,566 INFO L93 Difference]: Finished difference Result 5242 states and 13312 transitions. [2022-03-15 14:17:47,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-03-15 14:17:47,566 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 5.971014492753623) internal successors, (412), 69 states have internal predecessors, (412), 0 states have call successors, (0), 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 160 [2022-03-15 14:17:47,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:17:47,599 INFO L225 Difference]: With dead ends: 5242 [2022-03-15 14:17:47,599 INFO L226 Difference]: Without dead ends: 4987 [2022-03-15 14:17:47,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 289 SyntacticMatches, 10 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12314 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=3833, Invalid=30165, Unknown=42, NotChecked=0, Total=34040 [2022-03-15 14:17:47,608 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 4022 mSDsluCounter, 6922 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4022 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 4986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1592 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-15 14:17:47,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4022 Valid, 6447 Invalid, 4986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 3147 Invalid, 0 Unknown, 1592 Unchecked, 1.5s Time] [2022-03-15 14:17:47,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2022-03-15 14:17:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 1817. [2022-03-15 14:17:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1816 states have (on average 2.4377753303964758) internal successors, (4427), 1816 states have internal predecessors, (4427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:47,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 4427 transitions. [2022-03-15 14:17:47,659 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 4427 transitions. Word has length 160 [2022-03-15 14:17:47,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:17:47,659 INFO L470 AbstractCegarLoop]: Abstraction has 1817 states and 4427 transitions. [2022-03-15 14:17:47,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 5.971014492753623) internal successors, (412), 69 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:17:47,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 4427 transitions. [2022-03-15 14:17:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:17:47,663 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:17:47,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:17:47,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 14:17:47,879 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,SelfDestructingSolverStorable7 [2022-03-15 14:17:47,879 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:17:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:17:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1309256054, now seen corresponding path program 3 times [2022-03-15 14:17:47,880 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:17:47,880 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308072836] [2022-03-15 14:17:47,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:17:47,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:17:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:17:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:17:49,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:17:49,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308072836] [2022-03-15 14:17:49,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308072836] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:17:49,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245728989] [2022-03-15 14:17:49,163 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:17:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:17:49,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:17:49,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:17:49,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:17:49,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:17:49,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:17:49,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-15 14:17:49,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:17:49,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:17:49,486 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:17:49,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:17:50,316 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:17:50,317 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 45 [2022-03-15 14:17:50,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-15 14:17:50,542 INFO L353 Elim1Store]: treesize reduction 15, result has 16.7 percent of original size [2022-03-15 14:17:50,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 10 [2022-03-15 14:17:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:50,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:17:50,828 WARN L838 $PredicateComparison]: unable to prove that (or (and (not (= (mod c_~ok~0 256) 0)) (forall ((v_ArrVal_180 (Array Int Int))) (<= c_~v_old~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_180) c_~queue~0.base) (+ (* c_~start~0 4) c_~queue~0.offset))))) (< c_~start~0 0) (<= c_~end~0 c_~start~0) (<= c_~n~0 c_~start~0)) is different from false [2022-03-15 14:17:51,053 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:17:51,053 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 68 [2022-03-15 14:17:51,057 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-03-15 14:17:53,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:17:53,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245728989] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:17:53,073 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:17:53,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 26, 26] total 74 [2022-03-15 14:17:53,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771846381] [2022-03-15 14:17:53,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:17:53,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-03-15 14:17:53,075 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:17:53,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-03-15 14:17:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=552, Invalid=4707, Unknown=1, NotChecked=142, Total=5402 [2022-03-15 14:17:53,076 INFO L87 Difference]: Start difference. First operand 1817 states and 4427 transitions. Second operand has 74 states, 74 states have (on average 5.702702702702703) internal successors, (422), 74 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:32,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:18:32,432 INFO L93 Difference]: Finished difference Result 18383 states and 48806 transitions. [2022-03-15 14:18:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 304 states. [2022-03-15 14:18:32,432 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 5.702702702702703) internal successors, (422), 74 states have internal predecessors, (422), 0 states have call successors, (0), 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 160 [2022-03-15 14:18:32,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:18:32,477 INFO L225 Difference]: With dead ends: 18383 [2022-03-15 14:18:32,478 INFO L226 Difference]: Without dead ends: 12158 [2022-03-15 14:18:32,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 318 SyntacticMatches, 65 SemanticMatches, 364 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 59639 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=15518, Invalid=117294, Unknown=52, NotChecked=726, Total=133590 [2022-03-15 14:18:32,485 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 8029 mSDsluCounter, 16118 mSDsCounter, 0 mSdLazyCounter, 7144 mSolverCounterSat, 533 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8029 SdHoareTripleChecker+Valid, 14582 SdHoareTripleChecker+Invalid, 13434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 533 IncrementalHoareTripleChecker+Valid, 7144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5757 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:18:32,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8029 Valid, 14582 Invalid, 13434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [533 Valid, 7144 Invalid, 0 Unknown, 5757 Unchecked, 3.4s Time] [2022-03-15 14:18:32,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12158 states. [2022-03-15 14:18:32,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12158 to 3228. [2022-03-15 14:18:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3228 states, 3227 states have (on average 2.578865819646731) internal successors, (8322), 3227 states have internal predecessors, (8322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:32,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3228 states to 3228 states and 8322 transitions. [2022-03-15 14:18:32,597 INFO L78 Accepts]: Start accepts. Automaton has 3228 states and 8322 transitions. Word has length 160 [2022-03-15 14:18:32,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:18:32,597 INFO L470 AbstractCegarLoop]: Abstraction has 3228 states and 8322 transitions. [2022-03-15 14:18:32,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 5.702702702702703) internal successors, (422), 74 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:32,598 INFO L276 IsEmpty]: Start isEmpty. Operand 3228 states and 8322 transitions. [2022-03-15 14:18:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:18:32,604 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:18:32,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:18:32,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-15 14:18:32,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:18:32,825 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:18:32,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:18:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2036896368, now seen corresponding path program 4 times [2022-03-15 14:18:32,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:18:32,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144274769] [2022-03-15 14:18:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:18:32,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:18:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:18:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:18:33,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:18:33,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144274769] [2022-03-15 14:18:33,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144274769] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:18:33,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145529734] [2022-03-15 14:18:33,680 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:18:33,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:18:33,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:18:33,681 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:18:33,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:18:33,771 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:18:33,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:18:33,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-15 14:18:33,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:18:33,805 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:18:34,079 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:18:34,079 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:18:35,028 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:18:35,028 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 44 [2022-03-15 14:18:35,037 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-03-15 14:18:35,336 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 7 [2022-03-15 14:18:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:18:35,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:18:35,992 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:18:35,993 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 68 [2022-03-15 14:18:35,997 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 23 [2022-03-15 14:18:38,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:18:38,472 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145529734] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:18:38,472 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:18:38,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 26, 27] total 72 [2022-03-15 14:18:38,472 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039753819] [2022-03-15 14:18:38,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:18:38,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-03-15 14:18:38,473 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:18:38,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-03-15 14:18:38,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=489, Invalid=4620, Unknown=3, NotChecked=0, Total=5112 [2022-03-15 14:18:38,474 INFO L87 Difference]: Start difference. First operand 3228 states and 8322 transitions. Second operand has 72 states, 72 states have (on average 5.861111111111111) internal successors, (422), 72 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:18:58,651 INFO L93 Difference]: Finished difference Result 17356 states and 46744 transitions. [2022-03-15 14:18:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 160 states. [2022-03-15 14:18:58,653 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 5.861111111111111) internal successors, (422), 72 states have internal predecessors, (422), 0 states have call successors, (0), 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 160 [2022-03-15 14:18:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:18:58,713 INFO L225 Difference]: With dead ends: 17356 [2022-03-15 14:18:58,713 INFO L226 Difference]: Without dead ends: 16456 [2022-03-15 14:18:58,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 322 SyntacticMatches, 69 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 24463 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=6931, Invalid=41670, Unknown=19, NotChecked=0, Total=48620 [2022-03-15 14:18:58,718 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 9794 mSDsluCounter, 8439 mSDsCounter, 0 mSdLazyCounter, 4300 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9794 SdHoareTripleChecker+Valid, 7752 SdHoareTripleChecker+Invalid, 7226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 4300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2323 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-15 14:18:58,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9794 Valid, 7752 Invalid, 7226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 4300 Invalid, 0 Unknown, 2323 Unchecked, 1.9s Time] [2022-03-15 14:18:58,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16456 states. [2022-03-15 14:18:59,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16456 to 4508. [2022-03-15 14:18:59,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4507 states have (on average 2.6591968049700467) internal successors, (11985), 4507 states have internal predecessors, (11985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 11985 transitions. [2022-03-15 14:18:59,104 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 11985 transitions. Word has length 160 [2022-03-15 14:18:59,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:18:59,105 INFO L470 AbstractCegarLoop]: Abstraction has 4508 states and 11985 transitions. [2022-03-15 14:18:59,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 5.861111111111111) internal successors, (422), 72 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:18:59,106 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 11985 transitions. [2022-03-15 14:18:59,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-03-15 14:18:59,115 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:18:59,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:18:59,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-15 14:18:59,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:18:59,348 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:18:59,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:18:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2000453552, now seen corresponding path program 5 times [2022-03-15 14:18:59,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:18:59,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543818896] [2022-03-15 14:18:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:18:59,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:18:59,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:19:00,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:19:00,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:19:00,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543818896] [2022-03-15 14:19:00,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543818896] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:19:00,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897109272] [2022-03-15 14:19:00,316 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-15 14:19:00,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:00,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:19:00,317 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:19:00,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:19:00,399 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:19:00,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:19:00,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-15 14:19:00,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:19:00,478 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:19:00,910 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:19:00,911 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:19:01,778 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 14:19:01,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 14:19:02,017 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-15 14:19:02,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:19:02,551 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:19:02,780 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-03-15 14:19:03,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 14:19:03,260 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 14:19:03,260 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 10 [2022-03-15 14:19:03,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:19:03,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:19:05,314 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:19:05,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 104 treesize of output 79 [2022-03-15 14:19:05,328 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:19:05,329 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 1957 treesize of output 1895 [2022-03-15 14:19:05,385 INFO L353 Elim1Store]: treesize reduction 44, result has 54.6 percent of original size [2022-03-15 14:19:05,386 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 2627 treesize of output 2560 [2022-03-15 14:19:05,423 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:19:05,425 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2644 treesize of output 2452 [2022-03-15 14:19:05,458 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:19:05,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2404 treesize of output 1972 [2022-03-15 14:19:16,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:19:16,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 215 [2022-03-15 14:19:16,181 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:19:16,181 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 74 treesize of output 94 [2022-03-15 14:19:19,709 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-03-15 14:19:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:19:19,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897109272] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:19:19,829 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:19:19,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 35, 30] total 85 [2022-03-15 14:19:19,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052553175] [2022-03-15 14:19:19,829 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:19:19,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2022-03-15 14:19:19,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:19:19,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2022-03-15 14:19:19,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=717, Invalid=6382, Unknown=41, NotChecked=0, Total=7140 [2022-03-15 14:19:19,831 INFO L87 Difference]: Start difference. First operand 4508 states and 11985 transitions. Second operand has 85 states, 85 states have (on average 5.141176470588236) internal successors, (437), 85 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:41,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:19:41,293 INFO L93 Difference]: Finished difference Result 25438 states and 70005 transitions. [2022-03-15 14:19:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-15 14:19:41,294 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 85 states have (on average 5.141176470588236) internal successors, (437), 85 states have internal predecessors, (437), 0 states have call successors, (0), 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 160 [2022-03-15 14:19:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:19:41,344 INFO L225 Difference]: With dead ends: 25438 [2022-03-15 14:19:41,344 INFO L226 Difference]: Without dead ends: 22699 [2022-03-15 14:19:41,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 322 SyntacticMatches, 42 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 37998 ImplicationChecksByTransitivity, 21.1s TimeCoverageRelationStatistics Valid=8171, Invalid=76104, Unknown=115, NotChecked=0, Total=84390 [2022-03-15 14:19:41,348 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 4447 mSDsluCounter, 12578 mSDsCounter, 0 mSdLazyCounter, 4969 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4447 SdHoareTripleChecker+Valid, 11710 SdHoareTripleChecker+Invalid, 11223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 4969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5786 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:19:41,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4447 Valid, 11710 Invalid, 11223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 4969 Invalid, 0 Unknown, 5786 Unchecked, 2.3s Time] [2022-03-15 14:19:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22699 states. [2022-03-15 14:19:41,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22699 to 5030. [2022-03-15 14:19:41,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5030 states, 5029 states have (on average 2.651222907138596) internal successors, (13333), 5029 states have internal predecessors, (13333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5030 states to 5030 states and 13333 transitions. [2022-03-15 14:19:41,535 INFO L78 Accepts]: Start accepts. Automaton has 5030 states and 13333 transitions. Word has length 160 [2022-03-15 14:19:41,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:19:41,535 INFO L470 AbstractCegarLoop]: Abstraction has 5030 states and 13333 transitions. [2022-03-15 14:19:41,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 85 states have (on average 5.141176470588236) internal successors, (437), 85 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:41,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5030 states and 13333 transitions. [2022-03-15 14:19:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-03-15 14:19:41,545 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:19:41,545 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:19:41,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-15 14:19:41,764 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,SelfDestructingSolverStorable10 [2022-03-15 14:19:41,765 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:19:41,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:19:41,765 INFO L85 PathProgramCache]: Analyzing trace with hash -400624774, now seen corresponding path program 6 times [2022-03-15 14:19:41,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:19:41,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168821616] [2022-03-15 14:19:41,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:19:41,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:19:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:19:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:19:41,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:19:41,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168821616] [2022-03-15 14:19:41,847 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168821616] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:19:41,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264459333] [2022-03-15 14:19:41,847 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:19:41,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:41,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:19:41,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:19:41,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:19:41,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-03-15 14:19:41,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:19:41,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 14:19:41,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:19:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:19:42,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:19:42,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:19:42,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264459333] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:19:42,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:19:42,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2022-03-15 14:19:42,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980545784] [2022-03-15 14:19:42,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:19:42,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-15 14:19:42,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:19:42,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-15 14:19:42,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2022-03-15 14:19:42,503 INFO L87 Difference]: Start difference. First operand 5030 states and 13333 transitions. Second operand has 20 states, 20 states have (on average 15.7) internal successors, (314), 20 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:42,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:19:42,907 INFO L93 Difference]: Finished difference Result 8029 states and 21085 transitions. [2022-03-15 14:19:42,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-15 14:19:42,908 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.7) internal successors, (314), 20 states have internal predecessors, (314), 0 states have call successors, (0), 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 165 [2022-03-15 14:19:42,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:19:42,914 INFO L225 Difference]: With dead ends: 8029 [2022-03-15 14:19:42,915 INFO L226 Difference]: Without dead ends: 3827 [2022-03-15 14:19:42,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1065, Unknown=0, NotChecked=0, Total=1406 [2022-03-15 14:19:42,915 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 1444 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:19:42,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 2020 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:19:42,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3827 states. [2022-03-15 14:19:42,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3827 to 3354. [2022-03-15 14:19:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3354 states, 3353 states have (on average 2.599761407694602) internal successors, (8717), 3353 states have internal predecessors, (8717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3354 states to 3354 states and 8717 transitions. [2022-03-15 14:19:42,965 INFO L78 Accepts]: Start accepts. Automaton has 3354 states and 8717 transitions. Word has length 165 [2022-03-15 14:19:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:19:42,965 INFO L470 AbstractCegarLoop]: Abstraction has 3354 states and 8717 transitions. [2022-03-15 14:19:42,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.7) internal successors, (314), 20 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:42,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3354 states and 8717 transitions. [2022-03-15 14:19:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-15 14:19:42,971 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:19:42,972 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:19:43,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-15 14:19:43,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:43,188 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:19:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:19:43,188 INFO L85 PathProgramCache]: Analyzing trace with hash -970188615, now seen corresponding path program 7 times [2022-03-15 14:19:43,188 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:19:43,188 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443885779] [2022-03-15 14:19:43,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:19:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:19:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:19:43,252 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:19:43,252 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:19:43,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443885779] [2022-03-15 14:19:43,253 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443885779] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:19:43,253 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146387662] [2022-03-15 14:19:43,253 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-15 14:19:43,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:19:43,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:19:43,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:19:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:19:43,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 14:19:43,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:19:43,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:19:43,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:19:43,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:19:43,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146387662] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:19:43,708 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:19:43,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-03-15 14:19:43,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334624593] [2022-03-15 14:19:43,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:19:43,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:19:43,708 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:19:43,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:19:43,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:19:43,709 INFO L87 Difference]: Start difference. First operand 3354 states and 8717 transitions. Second operand has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:43,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:19:43,801 INFO L93 Difference]: Finished difference Result 5188 states and 13750 transitions. [2022-03-15 14:19:43,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 14:19:43,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 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 167 [2022-03-15 14:19:43,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:19:43,811 INFO L225 Difference]: With dead ends: 5188 [2022-03-15 14:19:43,811 INFO L226 Difference]: Without dead ends: 5173 [2022-03-15 14:19:43,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 326 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:19:43,811 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 144 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:19:43,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 708 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:19:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5173 states. [2022-03-15 14:19:43,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5173 to 3294. [2022-03-15 14:19:43,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3293 states have (on average 2.593379896750683) internal successors, (8540), 3293 states have internal predecessors, (8540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 8540 transitions. [2022-03-15 14:19:43,871 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 8540 transitions. Word has length 167 [2022-03-15 14:19:43,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:19:43,872 INFO L470 AbstractCegarLoop]: Abstraction has 3294 states and 8540 transitions. [2022-03-15 14:19:43,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.0) internal successors, (171), 9 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:19:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 8540 transitions. [2022-03-15 14:19:43,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-15 14:19:43,877 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:19:43,878 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:19:43,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-15 14:19:44,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:44,109 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:19:44,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:19:44,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1532958769, now seen corresponding path program 8 times [2022-03-15 14:19:44,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:19:44,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391749603] [2022-03-15 14:19:44,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:19:44,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:19:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:19:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:19:45,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:19:45,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391749603] [2022-03-15 14:19:45,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391749603] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:19:45,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726254531] [2022-03-15 14:19:45,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:19:45,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:19:45,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:19:45,636 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:19:45,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:19:45,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:19:45,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:19:45,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 46 conjunts are in the unsatisfiable core [2022-03-15 14:19:45,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:19:47,429 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-03-15 14:19:47,429 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 42 treesize of output 10 [2022-03-15 14:19:47,665 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:19:47,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:19:48,305 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:19:48,306 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 49 [2022-03-15 14:19:50,013 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:19:50,014 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726254531] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:19:50,014 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:19:50,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 24, 23] total 73 [2022-03-15 14:19:50,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136360641] [2022-03-15 14:19:50,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:19:50,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-15 14:19:50,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:19:50,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-15 14:19:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=4568, Unknown=0, NotChecked=0, Total=5256 [2022-03-15 14:19:50,029 INFO L87 Difference]: Start difference. First operand 3294 states and 8540 transitions. Second operand has 73 states, 73 states have (on average 6.068493150684931) internal successors, (443), 73 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:03,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:03,820 INFO L93 Difference]: Finished difference Result 14175 states and 38287 transitions. [2022-03-15 14:20:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2022-03-15 14:20:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 6.068493150684931) internal successors, (443), 73 states have internal predecessors, (443), 0 states have call successors, (0), 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 167 [2022-03-15 14:20:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:03,882 INFO L225 Difference]: With dead ends: 14175 [2022-03-15 14:20:03,882 INFO L226 Difference]: Without dead ends: 12723 [2022-03-15 14:20:03,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 323 SyntacticMatches, 7 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11280 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=4698, Invalid=30834, Unknown=0, NotChecked=0, Total=35532 [2022-03-15 14:20:03,884 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 3608 mSDsluCounter, 9698 mSDsCounter, 0 mSdLazyCounter, 4964 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 9104 SdHoareTripleChecker+Invalid, 6100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 4964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 868 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:03,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3608 Valid, 9104 Invalid, 6100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 4964 Invalid, 0 Unknown, 868 Unchecked, 2.3s Time] [2022-03-15 14:20:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2022-03-15 14:20:04,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 5146. [2022-03-15 14:20:04,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5146 states, 5145 states have (on average 2.640621963070943) internal successors, (13586), 5145 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:04,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 13586 transitions. [2022-03-15 14:20:04,014 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 13586 transitions. Word has length 167 [2022-03-15 14:20:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:04,015 INFO L470 AbstractCegarLoop]: Abstraction has 5146 states and 13586 transitions. [2022-03-15 14:20:04,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 6.068493150684931) internal successors, (443), 73 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 13586 transitions. [2022-03-15 14:20:04,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-03-15 14:20:04,023 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:04,023 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:20:04,040 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 14:20:04,239 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,SelfDestructingSolverStorable13 [2022-03-15 14:20:04,240 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:20:04,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1361187663, now seen corresponding path program 9 times [2022-03-15 14:20:04,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:04,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172751572] [2022-03-15 14:20:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:04,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:20:06,256 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:06,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172751572] [2022-03-15 14:20:06,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172751572] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:20:06,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645913502] [2022-03-15 14:20:06,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:20:06,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:20:06,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:20:06,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:20:06,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:20:06,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:20:06,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:20:06,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-15 14:20:06,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:20:11,250 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-03-15 14:20:11,250 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 42 treesize of output 10 [2022-03-15 14:20:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:20:11,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:20:13,714 INFO L353 Elim1Store]: treesize reduction 23, result has 58.2 percent of original size [2022-03-15 14:20:13,714 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 49 [2022-03-15 14:20:16,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:20:16,251 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645913502] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:20:16,251 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:20:16,251 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 14, 12] total 52 [2022-03-15 14:20:16,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304545236] [2022-03-15 14:20:16,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:20:16,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-03-15 14:20:16,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:16,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-03-15 14:20:16,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=2306, Unknown=4, NotChecked=0, Total=2652 [2022-03-15 14:20:16,253 INFO L87 Difference]: Start difference. First operand 5146 states and 13586 transitions. Second operand has 52 states, 52 states have (on average 8.5) internal successors, (442), 52 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:25,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:25,694 INFO L93 Difference]: Finished difference Result 11116 states and 30008 transitions. [2022-03-15 14:20:25,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-15 14:20:25,694 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 8.5) internal successors, (442), 52 states have internal predecessors, (442), 0 states have call successors, (0), 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 167 [2022-03-15 14:20:25,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:25,767 INFO L225 Difference]: With dead ends: 11116 [2022-03-15 14:20:25,767 INFO L226 Difference]: Without dead ends: 10564 [2022-03-15 14:20:25,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3207 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=1524, Invalid=10462, Unknown=4, NotChecked=0, Total=11990 [2022-03-15 14:20:25,770 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 1586 mSDsluCounter, 5550 mSDsCounter, 0 mSdLazyCounter, 2879 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 5373 SdHoareTripleChecker+Invalid, 3583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 607 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:25,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1586 Valid, 5373 Invalid, 3583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2879 Invalid, 0 Unknown, 607 Unchecked, 1.4s Time] [2022-03-15 14:20:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10564 states. [2022-03-15 14:20:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10564 to 5122. [2022-03-15 14:20:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5122 states, 5121 states have (on average 2.6313220074204255) internal successors, (13475), 5121 states have internal predecessors, (13475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5122 states to 5122 states and 13475 transitions. [2022-03-15 14:20:25,868 INFO L78 Accepts]: Start accepts. Automaton has 5122 states and 13475 transitions. Word has length 167 [2022-03-15 14:20:25,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:25,868 INFO L470 AbstractCegarLoop]: Abstraction has 5122 states and 13475 transitions. [2022-03-15 14:20:25,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 8.5) internal successors, (442), 52 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:25,869 INFO L276 IsEmpty]: Start isEmpty. Operand 5122 states and 13475 transitions. [2022-03-15 14:20:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-03-15 14:20:25,876 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:25,876 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:20:25,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-15 14:20:26,092 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,SelfDestructingSolverStorable14 [2022-03-15 14:20:26,093 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:20:26,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:26,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1144015461, now seen corresponding path program 1 times [2022-03-15 14:20:26,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:26,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898618385] [2022-03-15 14:20:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:20:26,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:26,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898618385] [2022-03-15 14:20:26,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898618385] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:20:26,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649964881] [2022-03-15 14:20:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:26,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:20:26,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:20:26,182 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:20:26,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-15 14:20:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:26,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 14:20:26,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:20:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:20:26,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:20:27,038 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-03-15 14:20:27,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649964881] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:20:27,038 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:20:27,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2022-03-15 14:20:27,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300405500] [2022-03-15 14:20:27,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:20:27,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-15 14:20:27,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-15 14:20:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2022-03-15 14:20:27,039 INFO L87 Difference]: Start difference. First operand 5122 states and 13475 transitions. Second operand has 24 states, 24 states have (on average 14.291666666666666) internal successors, (343), 24 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:27,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:27,370 INFO L93 Difference]: Finished difference Result 6897 states and 17806 transitions. [2022-03-15 14:20:27,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:20:27,371 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 14.291666666666666) internal successors, (343), 24 states have internal predecessors, (343), 0 states have call successors, (0), 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 172 [2022-03-15 14:20:27,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:27,379 INFO L225 Difference]: With dead ends: 6897 [2022-03-15 14:20:27,379 INFO L226 Difference]: Without dead ends: 5906 [2022-03-15 14:20:27,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 329 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2022-03-15 14:20:27,380 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 821 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:27,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [821 Valid, 1422 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:20:27,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5906 states. [2022-03-15 14:20:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5906 to 5160. [2022-03-15 14:20:27,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5160 states, 5159 states have (on average 2.6367513083930993) internal successors, (13603), 5159 states have internal predecessors, (13603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5160 states to 5160 states and 13603 transitions. [2022-03-15 14:20:27,446 INFO L78 Accepts]: Start accepts. Automaton has 5160 states and 13603 transitions. Word has length 172 [2022-03-15 14:20:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:27,446 INFO L470 AbstractCegarLoop]: Abstraction has 5160 states and 13603 transitions. [2022-03-15 14:20:27,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 14.291666666666666) internal successors, (343), 24 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5160 states and 13603 transitions. [2022-03-15 14:20:27,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-03-15 14:20:27,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:27,455 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:20:27,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-15 14:20:27,671 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,SelfDestructingSolverStorable15 [2022-03-15 14:20:27,671 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:20:27,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash -217823824, now seen corresponding path program 10 times [2022-03-15 14:20:27,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:27,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263342364] [2022-03-15 14:20:27,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:27,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:20:31,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:31,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263342364] [2022-03-15 14:20:31,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263342364] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:20:31,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169842438] [2022-03-15 14:20:31,040 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:20:31,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:20:31,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:20:31,041 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:20:31,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-15 14:20:31,152 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:20:31,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:20:31,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 35 conjunts are in the unsatisfiable core [2022-03-15 14:20:31,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:20:31,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 14:20:31,863 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-03-15 14:20:32,305 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-03-15 14:20:32,305 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 42 treesize of output 10 [2022-03-15 14:20:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-15 14:20:32,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:20:32,807 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:32,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 157 [2022-03-15 14:20:32,819 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:32,819 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 100 treesize of output 118 [2022-03-15 14:20:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-03-15 14:20:34,081 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169842438] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:20:34,081 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:20:34,081 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 20, 21] total 79 [2022-03-15 14:20:34,081 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773412861] [2022-03-15 14:20:34,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:20:34,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-15 14:20:34,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:20:34,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-15 14:20:34,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=665, Invalid=5492, Unknown=5, NotChecked=0, Total=6162 [2022-03-15 14:20:34,084 INFO L87 Difference]: Start difference. First operand 5160 states and 13603 transitions. Second operand has 79 states, 79 states have (on average 5.69620253164557) internal successors, (450), 79 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:20:44,977 INFO L93 Difference]: Finished difference Result 13920 states and 37629 transitions. [2022-03-15 14:20:44,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-15 14:20:44,977 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 5.69620253164557) internal successors, (450), 79 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2022-03-15 14:20:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:20:45,001 INFO L225 Difference]: With dead ends: 13920 [2022-03-15 14:20:45,001 INFO L226 Difference]: Without dead ends: 12904 [2022-03-15 14:20:45,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 335 SyntacticMatches, 3 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10173 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=4086, Invalid=28129, Unknown=5, NotChecked=0, Total=32220 [2022-03-15 14:20:45,012 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 3451 mSDsluCounter, 6826 mSDsCounter, 0 mSdLazyCounter, 3834 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3451 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 3834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1011 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:20:45,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3451 Valid, 6554 Invalid, 5022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 3834 Invalid, 0 Unknown, 1011 Unchecked, 2.1s Time] [2022-03-15 14:20:45,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12904 states. [2022-03-15 14:20:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12904 to 4250. [2022-03-15 14:20:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4250 states, 4249 states have (on average 2.6490939044481054) internal successors, (11256), 4249 states have internal predecessors, (11256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:45,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 11256 transitions. [2022-03-15 14:20:45,132 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 11256 transitions. Word has length 174 [2022-03-15 14:20:45,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:20:45,133 INFO L470 AbstractCegarLoop]: Abstraction has 4250 states and 11256 transitions. [2022-03-15 14:20:45,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 5.69620253164557) internal successors, (450), 79 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:20:45,133 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 11256 transitions. [2022-03-15 14:20:45,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-03-15 14:20:45,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:20:45,140 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:20:45,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-15 14:20:45,355 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,SelfDestructingSolverStorable16 [2022-03-15 14:20:45,356 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-15 14:20:45,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:20:45,356 INFO L85 PathProgramCache]: Analyzing trace with hash 897017768, now seen corresponding path program 2 times [2022-03-15 14:20:45,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:20:45,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484332153] [2022-03-15 14:20:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:20:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:20:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:20:47,401 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-03-15 14:20:47,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:20:47,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484332153] [2022-03-15 14:20:47,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484332153] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:20:47,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826866267] [2022-03-15 14:20:47,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:20:47,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:20:47,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:20:47,404 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:20:47,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-15 14:20:47,505 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:20:47,505 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:20:47,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-15 14:20:47,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:20:47,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:20:47,898 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-03-15 14:20:47,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-03-15 14:20:48,154 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-03-15 14:20:48,578 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-03-15 14:20:48,578 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-03-15 14:20:48,688 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:20:48,761 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:20:48,974 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 14:20:49,487 INFO L353 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-03-15 14:20:49,487 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 45 [2022-03-15 14:20:49,499 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-03-15 14:20:49,744 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2022-03-15 14:20:49,801 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 14:20:49,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:20:50,057 WARN L838 $PredicateComparison]: unable to prove that (or (< c_~start~0 0) (<= c_~end~0 c_~start~0) (and (forall ((v_ArrVal_517 (Array Int Int))) (<= c_~v_old~0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_517) c_~queue~0.base) (+ (* c_~start~0 4) c_~queue~0.offset)))) (not (= (mod c_~ok~0 256) 0))) (<= c_~n~0 c_~start~0)) is different from false [2022-03-15 14:20:54,526 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:54,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 86 [2022-03-15 14:20:54,557 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:54,557 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 2512 treesize of output 2289 [2022-03-15 14:20:54,581 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:54,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 2289 treesize of output 1857 [2022-03-15 14:20:54,606 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 14:20:54,606 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1857 treesize of output 1665 [2022-03-15 14:20:54,657 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1021 treesize of output 829 [2022-03-15 14:20:54,672 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-15 14:20:54,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-15 14:20:54,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-15 14:20:54,892 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-15 14:20:54,897 INFO L158 Benchmark]: Toolchain (without parser) took 223397.19ms. Allocated memory was 206.6MB in the beginning and 955.3MB in the end (delta: 748.7MB). Free memory was 153.2MB in the beginning and 492.0MB in the end (delta: -338.7MB). Peak memory consumption was 411.0MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 206.6MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.42ms. Allocated memory is still 206.6MB. Free memory was 153.0MB in the beginning and 178.1MB in the end (delta: -25.1MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.23ms. Allocated memory is still 206.6MB. Free memory was 178.1MB in the beginning and 176.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: Boogie Preprocessor took 27.48ms. Allocated memory is still 206.6MB. Free memory was 176.0MB in the beginning and 174.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: RCFGBuilder took 430.35ms. Allocated memory is still 206.6MB. Free memory was 174.4MB in the beginning and 152.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,897 INFO L158 Benchmark]: TraceAbstraction took 222703.04ms. Allocated memory was 206.6MB in the beginning and 955.3MB in the end (delta: 748.7MB). Free memory was 152.4MB in the beginning and 492.0MB in the end (delta: -339.6MB). Peak memory consumption was 410.7MB. Max. memory is 8.0GB. [2022-03-15 14:20:54,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 206.6MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 207.42ms. Allocated memory is still 206.6MB. Free memory was 153.0MB in the beginning and 178.1MB in the end (delta: -25.1MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.23ms. Allocated memory is still 206.6MB. Free memory was 178.1MB in the beginning and 176.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.48ms. Allocated memory is still 206.6MB. Free memory was 176.0MB in the beginning and 174.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 430.35ms. Allocated memory is still 206.6MB. Free memory was 174.4MB in the beginning and 152.4MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 222703.04ms. Allocated memory was 206.6MB in the beginning and 955.3MB in the end (delta: 748.7MB). Free memory was 152.4MB in the beginning and 492.0MB in the end (delta: -339.6MB). Peak memory consumption was 410.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-15 14:20:54,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...