/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 02:57:49,200 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 02:57:49,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 02:57:49,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 02:57:49,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 02:57:49,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 02:57:49,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 02:57:49,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 02:57:49,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 02:57:49,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 02:57:49,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 02:57:49,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 02:57:49,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 02:57:49,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 02:57:49,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 02:57:49,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 02:57:49,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 02:57:49,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 02:57:49,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 02:57:49,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 02:57:49,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-01-18 02:57:49,338 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 02:57:49,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 02:57:49,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 02:57:49,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 02:57:49,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 02:57:49,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 02:57:49,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 02:57:49,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 02:57:49,340 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 02:57:49,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 02:57:49,341 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 02:57:49,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 02:57:49,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 02:57:49,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 02:57:49,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:57:49,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 02:57:49,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 02:57:49,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 02:57:49,344 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 02:57:49,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 02:57:49,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 02:57:49,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 02:57:49,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 02:57:49,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 02:57:49,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 02:57:49,572 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 02:57:49,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-01-18 02:57:49,631 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14e4ee00/26281f22796e4fdb8479dda824021319/FLAGfe1ad0581 [2022-01-18 02:57:49,961 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 02:57:49,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-two-queue.wvr.c [2022-01-18 02:57:49,971 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14e4ee00/26281f22796e4fdb8479dda824021319/FLAGfe1ad0581 [2022-01-18 02:57:50,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14e4ee00/26281f22796e4fdb8479dda824021319 [2022-01-18 02:57:50,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 02:57:50,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 02:57:50,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 02:57:50,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 02:57:50,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 02:57:50,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14df33e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50, skipping insertion in model container [2022-01-18 02:57:50,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 02:57:50,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 02:57:50,544 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-two-queue.wvr.c[2987,3000] [2022-01-18 02:57:50,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:57:50,558 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 02:57:50,575 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-two-queue.wvr.c[2987,3000] [2022-01-18 02:57:50,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 02:57:50,588 INFO L208 MainTranslator]: Completed translation [2022-01-18 02:57:50,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50 WrapperNode [2022-01-18 02:57:50,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 02:57:50,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 02:57:50,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 02:57:50,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 02:57:50,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,620 INFO L137 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 200 [2022-01-18 02:57:50,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 02:57:50,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 02:57:50,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 02:57:50,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 02:57:50,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 02:57:50,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 02:57:50,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 02:57:50,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 02:57:50,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (1/1) ... [2022-01-18 02:57:50,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 02:57:50,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:57:50,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-18 02:57:50,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-18 02:57:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 02:57:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 02:57:50,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 02:57:50,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 02:57:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-18 02:57:50,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 02:57:50,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 02:57:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 02:57:50,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 02:57:50,709 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 02:57:50,783 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 02:57:50,784 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 02:57:51,045 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 02:57:51,136 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 02:57:51,137 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-18 02:57:51,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:57:51 BoogieIcfgContainer [2022-01-18 02:57:51,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 02:57:51,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 02:57:51,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 02:57:51,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 02:57:51,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 02:57:50" (1/3) ... [2022-01-18 02:57:51,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ec06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:57:51, skipping insertion in model container [2022-01-18 02:57:51,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 02:57:50" (2/3) ... [2022-01-18 02:57:51,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ec06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 02:57:51, skipping insertion in model container [2022-01-18 02:57:51,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 02:57:51" (3/3) ... [2022-01-18 02:57:51,145 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2022-01-18 02:57:51,149 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 02:57:51,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 02:57:51,149 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 02:57:51,149 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 02:57:51,183 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,184 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,185 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,186 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,187 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,188 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,189 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,190 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,191 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,192 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,195 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,196 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 02:57:51,199 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 02:57:51,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 02:57:51,242 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 02:57:51,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 02:57:51,257 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 172 places, 178 transitions, 372 flow [2022-01-18 02:57:51,314 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:51,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-18 02:57:51,333 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:51,333 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] [2022-01-18 02:57:51,334 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:51,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:51,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1706445545, now seen corresponding path program 1 times [2022-01-18 02:57:51,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:51,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545252793] [2022-01-18 02:57:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:51,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:51,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:51,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545252793] [2022-01-18 02:57:51,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545252793] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:51,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:51,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 02:57:51,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757291514] [2022-01-18 02:57:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:51,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 02:57:51,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 02:57:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:57:51,671 INFO L87 Difference]: Start difference. First operand has 531 states, 530 states have (on average 2.3943396226415095) internal successors, (1269), 530 states have internal predecessors, (1269), 0 states have call successors, (0), 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 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:51,725 INFO L93 Difference]: Finished difference Result 531 states and 1181 transitions. [2022-01-18 02:57:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 02:57:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-01-18 02:57:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:51,747 INFO L225 Difference]: With dead ends: 531 [2022-01-18 02:57:51,748 INFO L226 Difference]: Without dead ends: 526 [2022-01-18 02:57:51,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 02:57:51,751 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:51,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:57:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2022-01-18 02:57:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2022-01-18 02:57:51,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 2.24) internal successors, (1176), 525 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1176 transitions. [2022-01-18 02:57:51,842 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1176 transitions. Word has length 127 [2022-01-18 02:57:51,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:51,842 INFO L470 AbstractCegarLoop]: Abstraction has 526 states and 1176 transitions. [2022-01-18 02:57:51,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.5) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:51,843 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1176 transitions. [2022-01-18 02:57:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-18 02:57:51,854 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:51,854 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] [2022-01-18 02:57:51,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 02:57:51,855 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:51,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:51,859 INFO L85 PathProgramCache]: Analyzing trace with hash -173927127, now seen corresponding path program 1 times [2022-01-18 02:57:51,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:51,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72475811] [2022-01-18 02:57:51,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:51,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:52,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:52,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72475811] [2022-01-18 02:57:52,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72475811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:52,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:52,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:57:52,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378940762] [2022-01-18 02:57:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:52,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:57:52,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:57:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:52,140 INFO L87 Difference]: Start difference. First operand 526 states and 1176 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:52,284 INFO L93 Difference]: Finished difference Result 982 states and 2343 transitions. [2022-01-18 02:57:52,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:57:52,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-01-18 02:57:52,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:52,293 INFO L225 Difference]: With dead ends: 982 [2022-01-18 02:57:52,293 INFO L226 Difference]: Without dead ends: 931 [2022-01-18 02:57:52,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-18 02:57:52,298 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 179 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:52,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 480 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:57:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-01-18 02:57:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 581. [2022-01-18 02:57:52,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 2.253448275862069) internal successors, (1307), 580 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 1307 transitions. [2022-01-18 02:57:52,333 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 1307 transitions. Word has length 127 [2022-01-18 02:57:52,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:52,336 INFO L470 AbstractCegarLoop]: Abstraction has 581 states and 1307 transitions. [2022-01-18 02:57:52,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 1307 transitions. [2022-01-18 02:57:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:57:52,341 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:52,342 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] [2022-01-18 02:57:52,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 02:57:52,342 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:52,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2114885365, now seen corresponding path program 1 times [2022-01-18 02:57:52,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:52,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353909324] [2022-01-18 02:57:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:52,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:52,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:52,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353909324] [2022-01-18 02:57:52,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353909324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:52,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:52,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 02:57:52,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956703612] [2022-01-18 02:57:52,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 02:57:52,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 02:57:52,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:57:52,525 INFO L87 Difference]: Start difference. First operand 581 states and 1307 transitions. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:52,593 INFO L93 Difference]: Finished difference Result 931 states and 2193 transitions. [2022-01-18 02:57:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 02:57:52,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:57:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:52,599 INFO L225 Difference]: With dead ends: 931 [2022-01-18 02:57:52,599 INFO L226 Difference]: Without dead ends: 886 [2022-01-18 02:57:52,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-18 02:57:52,609 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 182 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:52,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 350 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:57:52,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2022-01-18 02:57:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 536. [2022-01-18 02:57:52,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 535 states have (on average 2.2411214953271026) internal successors, (1199), 535 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1199 transitions. [2022-01-18 02:57:52,646 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1199 transitions. Word has length 133 [2022-01-18 02:57:52,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:52,647 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 1199 transitions. [2022-01-18 02:57:52,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,647 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1199 transitions. [2022-01-18 02:57:52,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:57:52,649 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:52,649 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] [2022-01-18 02:57:52,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 02:57:52,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:52,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:52,650 INFO L85 PathProgramCache]: Analyzing trace with hash 400951589, now seen corresponding path program 1 times [2022-01-18 02:57:52,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:52,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483982624] [2022-01-18 02:57:52,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:52,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:52,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:52,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483982624] [2022-01-18 02:57:52,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483982624] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:52,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:52,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:57:52,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820794677] [2022-01-18 02:57:52,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:52,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:57:52,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:52,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:57:52,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:52,752 INFO L87 Difference]: Start difference. First operand 536 states and 1199 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:52,822 INFO L93 Difference]: Finished difference Result 949 states and 2283 transitions. [2022-01-18 02:57:52,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:57:52,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:57:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:52,827 INFO L225 Difference]: With dead ends: 949 [2022-01-18 02:57:52,828 INFO L226 Difference]: Without dead ends: 949 [2022-01-18 02:57:52,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:52,833 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 192 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:52,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 358 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:57:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2022-01-18 02:57:52,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 583. [2022-01-18 02:57:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 582 states have (on average 2.2783505154639174) internal successors, (1326), 582 states have internal predecessors, (1326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 1326 transitions. [2022-01-18 02:57:52,853 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 1326 transitions. Word has length 133 [2022-01-18 02:57:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:52,854 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 1326 transitions. [2022-01-18 02:57:52,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:52,854 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 1326 transitions. [2022-01-18 02:57:52,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-01-18 02:57:52,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:52,857 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] [2022-01-18 02:57:52,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 02:57:52,857 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:52,858 INFO L85 PathProgramCache]: Analyzing trace with hash 282045507, now seen corresponding path program 2 times [2022-01-18 02:57:52,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:52,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383369324] [2022-01-18 02:57:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:52,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:52,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:52,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383369324] [2022-01-18 02:57:52,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383369324] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:52,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:52,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:57:52,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821463687] [2022-01-18 02:57:52,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:52,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:57:52,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:52,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:57:52,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:52,986 INFO L87 Difference]: Start difference. First operand 583 states and 1326 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:53,046 INFO L93 Difference]: Finished difference Result 727 states and 1713 transitions. [2022-01-18 02:57:53,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 02:57:53,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2022-01-18 02:57:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:53,050 INFO L225 Difference]: With dead ends: 727 [2022-01-18 02:57:53,050 INFO L226 Difference]: Without dead ends: 727 [2022-01-18 02:57:53,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:53,051 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 150 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:53,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 467 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:57:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-01-18 02:57:53,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 611. [2022-01-18 02:57:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 2.3) internal successors, (1403), 610 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1403 transitions. [2022-01-18 02:57:53,067 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1403 transitions. Word has length 133 [2022-01-18 02:57:53,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:53,068 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1403 transitions. [2022-01-18 02:57:53,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1403 transitions. [2022-01-18 02:57:53,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-01-18 02:57:53,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:53,071 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] [2022-01-18 02:57:53,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 02:57:53,071 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:53,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:53,072 INFO L85 PathProgramCache]: Analyzing trace with hash 951456391, now seen corresponding path program 1 times [2022-01-18 02:57:53,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:53,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876118498] [2022-01-18 02:57:53,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:53,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:53,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876118498] [2022-01-18 02:57:53,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876118498] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:53,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:53,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:57:53,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207345515] [2022-01-18 02:57:53,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:53,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:57:53,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:53,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:57:53,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:53,162 INFO L87 Difference]: Start difference. First operand 611 states and 1403 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:53,243 INFO L93 Difference]: Finished difference Result 701 states and 1529 transitions. [2022-01-18 02:57:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 02:57:53,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2022-01-18 02:57:53,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:53,247 INFO L225 Difference]: With dead ends: 701 [2022-01-18 02:57:53,247 INFO L226 Difference]: Without dead ends: 617 [2022-01-18 02:57:53,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-18 02:57:53,248 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 110 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:53,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 490 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:57:53,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-01-18 02:57:53,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 612. [2022-01-18 02:57:53,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 611 states have (on average 2.297872340425532) internal successors, (1404), 611 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1404 transitions. [2022-01-18 02:57:53,265 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1404 transitions. Word has length 139 [2022-01-18 02:57:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:53,265 INFO L470 AbstractCegarLoop]: Abstraction has 612 states and 1404 transitions. [2022-01-18 02:57:53,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1404 transitions. [2022-01-18 02:57:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-01-18 02:57:53,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:53,268 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] [2022-01-18 02:57:53,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 02:57:53,268 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash 860679619, now seen corresponding path program 1 times [2022-01-18 02:57:53,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:53,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769321050] [2022-01-18 02:57:53,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:53,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:53,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 02:57:53,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:53,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769321050] [2022-01-18 02:57:53,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769321050] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:53,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:53,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 02:57:53,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129981759] [2022-01-18 02:57:53,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:53,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 02:57:53,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:53,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 02:57:53,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 02:57:53,356 INFO L87 Difference]: Start difference. First operand 612 states and 1404 transitions. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:53,441 INFO L93 Difference]: Finished difference Result 663 states and 1484 transitions. [2022-01-18 02:57:53,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 02:57:53,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2022-01-18 02:57:53,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:53,445 INFO L225 Difference]: With dead ends: 663 [2022-01-18 02:57:53,445 INFO L226 Difference]: Without dead ends: 618 [2022-01-18 02:57:53,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-01-18 02:57:53,447 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 211 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:53,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 519 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 02:57:53,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2022-01-18 02:57:53,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 613. [2022-01-18 02:57:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 2.295751633986928) internal successors, (1405), 612 states have internal predecessors, (1405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 1405 transitions. [2022-01-18 02:57:53,459 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 1405 transitions. Word has length 146 [2022-01-18 02:57:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:53,459 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 1405 transitions. [2022-01-18 02:57:53,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,459 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 1405 transitions. [2022-01-18 02:57:53,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 02:57:53,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:53,492 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] [2022-01-18 02:57:53,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 02:57:53,492 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:53,493 INFO L85 PathProgramCache]: Analyzing trace with hash -72994876, now seen corresponding path program 1 times [2022-01-18 02:57:53,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:53,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43214376] [2022-01-18 02:57:53,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:53,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:53,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:53,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-18 02:57:53,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:53,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43214376] [2022-01-18 02:57:53,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43214376] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 02:57:53,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 02:57:53,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 02:57:53,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811890466] [2022-01-18 02:57:53,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 02:57:53,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 02:57:53,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 02:57:53,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 02:57:53,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 02:57:53,579 INFO L87 Difference]: Start difference. First operand 613 states and 1405 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 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) [2022-01-18 02:57:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 02:57:53,599 INFO L93 Difference]: Finished difference Result 552 states and 1257 transitions. [2022-01-18 02:57:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 02:57:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 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 [2022-01-18 02:57:53,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 02:57:53,602 INFO L225 Difference]: With dead ends: 552 [2022-01-18 02:57:53,602 INFO L226 Difference]: Without dead ends: 552 [2022-01-18 02:57:53,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 02:57:53,603 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 10 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 02:57:53,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 206 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 02:57:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-01-18 02:57:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2022-01-18 02:57:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 551 states have (on average 2.2813067150635207) internal successors, (1257), 551 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 02:57:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 1257 transitions. [2022-01-18 02:57:53,614 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 1257 transitions. Word has length 153 [2022-01-18 02:57:53,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 02:57:53,614 INFO L470 AbstractCegarLoop]: Abstraction has 552 states and 1257 transitions. [2022-01-18 02:57:53,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 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) [2022-01-18 02:57:53,615 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 1257 transitions. [2022-01-18 02:57:53,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 02:57:53,616 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 02:57:53,617 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] [2022-01-18 02:57:53,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 02:57:53,617 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 02:57:53,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 02:57:53,617 INFO L85 PathProgramCache]: Analyzing trace with hash 2123275802, now seen corresponding path program 2 times [2022-01-18 02:57:53,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 02:57:53,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440427100] [2022-01-18 02:57:53,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 02:57:53,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 02:57:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 02:57:57,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:57:57,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 02:57:57,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440427100] [2022-01-18 02:57:57,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440427100] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 02:57:57,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896982882] [2022-01-18 02:57:57,066 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 02:57:57,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 02:57:57,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 02:57:57,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 02:57:57,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 02:57:57,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 02:57:57,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 02:57:57,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 91 conjunts are in the unsatisfiable core [2022-01-18 02:57:57,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 02:57:58,292 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 [2022-01-18 02:57:58,703 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 02:58:00,140 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 02:58:00,141 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 [2022-01-18 02:58:00,656 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 [2022-01-18 02:58:01,700 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 02:58:02,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 02:58:02,185 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 18 treesize of output 20 [2022-01-18 02:58:03,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 15 [2022-01-18 02:58:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 02:58:03,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 02:58:44,693 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-01-18 02:58:44,693 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 2 case distinctions, treesize of input 375 treesize of output 165 [2022-01-18 02:58:44,772 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:58:44,773 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1336 treesize of output 1322 [2022-01-18 02:58:44,813 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:58:44,814 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 1098 treesize of output 882 [2022-01-18 02:58:44,876 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 02:58:44,876 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 858 treesize of output 816 [2022-01-18 03:03:30,280 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 [2022-01-18 03:03:31,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:03:31,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896982882] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:03:31,334 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:03:31,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44, 43] total 119 [2022-01-18 03:03:31,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882621914] [2022-01-18 03:03:31,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:03:31,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-01-18 03:03:31,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:03:31,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-01-18 03:03:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=12963, Unknown=60, NotChecked=0, Total=14042 [2022-01-18 03:03:31,340 INFO L87 Difference]: Start difference. First operand 552 states and 1257 transitions. Second operand has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:03:53,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:03:53,982 INFO L93 Difference]: Finished difference Result 1817 states and 4363 transitions. [2022-01-18 03:03:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2022-01-18 03:03:53,983 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 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 [2022-01-18 03:03:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:03:53,990 INFO L225 Difference]: With dead ends: 1817 [2022-01-18 03:03:53,990 INFO L226 Difference]: Without dead ends: 1715 [2022-01-18 03:03:54,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 242 SyntacticMatches, 23 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17383 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=5261, Invalid=44078, Unknown=167, NotChecked=0, Total=49506 [2022-01-18 03:03:54,001 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 3925 mSDsluCounter, 9282 mSDsCounter, 0 mSdLazyCounter, 4445 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3925 SdHoareTripleChecker+Valid, 8886 SdHoareTripleChecker+Invalid, 8712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 4445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3934 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-18 03:03:54,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3925 Valid, 8886 Invalid, 8712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 4445 Invalid, 0 Unknown, 3934 Unchecked, 2.5s Time] [2022-01-18 03:03:54,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2022-01-18 03:03:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 745. [2022-01-18 03:03:54,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 744 states have (on average 2.1733870967741935) internal successors, (1617), 744 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:03:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1617 transitions. [2022-01-18 03:03:54,024 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1617 transitions. Word has length 153 [2022-01-18 03:03:54,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:03:54,025 INFO L470 AbstractCegarLoop]: Abstraction has 745 states and 1617 transitions. [2022-01-18 03:03:54,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 3.3781512605042017) internal successors, (402), 119 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:03:54,026 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1617 transitions. [2022-01-18 03:03:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 03:03:54,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:03:54,028 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] [2022-01-18 03:03:54,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-18 03:03:54,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:03:54,250 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 03:03:54,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:03:54,251 INFO L85 PathProgramCache]: Analyzing trace with hash 2078337974, now seen corresponding path program 3 times [2022-01-18 03:03:54,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:03:54,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763269992] [2022-01-18 03:03:54,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:03:54,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:03:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:03:57,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:03:57,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:03:57,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763269992] [2022-01-18 03:03:57,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763269992] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:03:57,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491367715] [2022-01-18 03:03:57,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 03:03:57,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:03:57,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:03:57,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 03:03:57,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 03:03:57,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 03:03:57,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:03:57,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 92 conjunts are in the unsatisfiable core [2022-01-18 03:03:57,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:03:58,186 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 [2022-01-18 03:03:58,503 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 03:03:59,705 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 03:03:59,706 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 [2022-01-18 03:04:00,113 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 [2022-01-18 03:04:00,927 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 03:04:01,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:04:01,330 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 29 treesize of output 29 [2022-01-18 03:04:02,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 18 [2022-01-18 03:04:02,676 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:04:02,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:04:47,492 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-01-18 03:04:47,492 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 2 case distinctions, treesize of input 325 treesize of output 151 [2022-01-18 03:04:47,571 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:04:47,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-01-18 03:04:47,649 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:04:47,649 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 714 treesize of output 744 [2022-01-18 03:04:47,696 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:04:47,697 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 630 treesize of output 558 [2022-01-18 03:05:29,600 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 [2022-01-18 03:05:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:05:31,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491367715] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:05:31,061 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:05:31,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 45, 45] total 123 [2022-01-18 03:05:31,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528057508] [2022-01-18 03:05:31,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:05:31,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2022-01-18 03:05:31,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:05:31,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2022-01-18 03:05:31,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=969, Invalid=13973, Unknown=64, NotChecked=0, Total=15006 [2022-01-18 03:05:31,065 INFO L87 Difference]: Start difference. First operand 745 states and 1617 transitions. Second operand has 123 states, 123 states have (on average 3.341463414634146) internal successors, (411), 123 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:06:00,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:06:00,574 INFO L93 Difference]: Finished difference Result 2051 states and 5049 transitions. [2022-01-18 03:06:00,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2022-01-18 03:06:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 123 states have (on average 3.341463414634146) internal successors, (411), 123 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 03:06:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:06:00,586 INFO L225 Difference]: With dead ends: 2051 [2022-01-18 03:06:00,586 INFO L226 Difference]: Without dead ends: 1949 [2022-01-18 03:06:00,590 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 238 SyntacticMatches, 25 SemanticMatches, 249 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 21270 ImplicationChecksByTransitivity, 35.2s TimeCoverageRelationStatistics Valid=6162, Invalid=56450, Unknown=138, NotChecked=0, Total=62750 [2022-01-18 03:06:00,590 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 4388 mSDsluCounter, 12053 mSDsCounter, 0 mSdLazyCounter, 5456 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 11437 SdHoareTripleChecker+Invalid, 11176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 5456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5447 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-18 03:06:00,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4388 Valid, 11437 Invalid, 11176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 5456 Invalid, 0 Unknown, 5447 Unchecked, 3.0s Time] [2022-01-18 03:06:00,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2022-01-18 03:06:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 928. [2022-01-18 03:06:00,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 927 states have (on average 2.29126213592233) internal successors, (2124), 927 states have internal predecessors, (2124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:06:00,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 2124 transitions. [2022-01-18 03:06:00,617 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 2124 transitions. Word has length 153 [2022-01-18 03:06:00,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:06:00,617 INFO L470 AbstractCegarLoop]: Abstraction has 928 states and 2124 transitions. [2022-01-18 03:06:00,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 3.341463414634146) internal successors, (411), 123 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:06:00,618 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 2124 transitions. [2022-01-18 03:06:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 03:06:00,621 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:06:00,621 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] [2022-01-18 03:06:00,646 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 03:06:00,835 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,SelfDestructingSolverStorable9 [2022-01-18 03:06:00,836 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 03:06:00,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:06:00,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1100911208, now seen corresponding path program 4 times [2022-01-18 03:06:00,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:06:00,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956593290] [2022-01-18 03:06:00,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:06:00,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:06:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:06:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:06:03,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:06:03,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956593290] [2022-01-18 03:06:03,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956593290] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:06:03,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439380366] [2022-01-18 03:06:03,909 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 03:06:03,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:06:03,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:06:03,910 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 03:06:03,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 03:06:04,002 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 03:06:04,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:06:04,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 94 conjunts are in the unsatisfiable core [2022-01-18 03:06:04,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:06:04,130 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 [2022-01-18 03:06:04,196 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 03:06:04,196 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 03:06:05,104 INFO L353 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-01-18 03:06:05,104 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-01-18 03:06:05,553 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 15 treesize of output 11 [2022-01-18 03:06:07,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:06:07,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:06:07,141 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-18 03:06:07,142 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 17 [2022-01-18 03:06:07,548 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 [2022-01-18 03:06:08,377 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 6 treesize of output 5 [2022-01-18 03:06:08,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:06:08,778 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-01-18 03:06:09,579 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 18 [2022-01-18 03:06:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:06:10,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:06:53,841 INFO L353 Elim1Store]: treesize reduction 27, result has 61.4 percent of original size [2022-01-18 03:06:53,842 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 2 case distinctions, treesize of input 325 treesize of output 151 [2022-01-18 03:06:53,904 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:06:53,904 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 832 treesize of output 914 [2022-01-18 03:06:53,936 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:06:53,937 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 690 treesize of output 618 [2022-01-18 03:06:53,982 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:06:53,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 594 treesize of output 624 [2022-01-18 03:07:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:07:08,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439380366] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:07:08,378 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:07:08,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 46] total 126 [2022-01-18 03:07:08,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492984795] [2022-01-18 03:07:08,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:07:08,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-01-18 03:07:08,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:07:08,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-01-18 03:07:08,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=14680, Unknown=79, NotChecked=0, Total=15750 [2022-01-18 03:07:08,381 INFO L87 Difference]: Start difference. First operand 928 states and 2124 transitions. Second operand has 126 states, 126 states have (on average 3.261904761904762) internal successors, (411), 126 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:07:44,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:07:44,852 INFO L93 Difference]: Finished difference Result 1884 states and 4411 transitions. [2022-01-18 03:07:44,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-01-18 03:07:44,855 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 126 states have (on average 3.261904761904762) internal successors, (411), 126 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 03:07:44,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:07:44,863 INFO L225 Difference]: With dead ends: 1884 [2022-01-18 03:07:44,863 INFO L226 Difference]: Without dead ends: 1836 [2022-01-18 03:07:44,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 231 SyntacticMatches, 20 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 16956 ImplicationChecksByTransitivity, 45.9s TimeCoverageRelationStatistics Valid=5626, Invalid=48584, Unknown=312, NotChecked=0, Total=54522 [2022-01-18 03:07:44,867 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 3685 mSDsluCounter, 10081 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3685 SdHoareTripleChecker+Valid, 9581 SdHoareTripleChecker+Invalid, 9053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4821 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-01-18 03:07:44,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3685 Valid, 9581 Invalid, 9053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 3997 Invalid, 0 Unknown, 4821 Unchecked, 2.5s Time] [2022-01-18 03:07:44,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2022-01-18 03:07:44,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1040. [2022-01-18 03:07:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 1039 states have (on average 2.236766121270452) internal successors, (2324), 1039 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:07:44,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 2324 transitions. [2022-01-18 03:07:44,890 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 2324 transitions. Word has length 153 [2022-01-18 03:07:44,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:07:44,890 INFO L470 AbstractCegarLoop]: Abstraction has 1040 states and 2324 transitions. [2022-01-18 03:07:44,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 3.261904761904762) internal successors, (411), 126 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:07:44,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 2324 transitions. [2022-01-18 03:07:44,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 03:07:44,893 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:07:44,893 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] [2022-01-18 03:07:44,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-18 03:07:45,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:07:45,108 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 03:07:45,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:07:45,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1173633100, now seen corresponding path program 5 times [2022-01-18 03:07:45,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:07:45,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821014680] [2022-01-18 03:07:45,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:07:45,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:07:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:07:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:07:50,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:07:50,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821014680] [2022-01-18 03:07:50,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821014680] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:07:50,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605763797] [2022-01-18 03:07:50,078 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 03:07:50,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:07:50,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:07:50,080 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 03:07:50,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 03:07:50,175 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 03:07:50,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:07:50,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 61 conjunts are in the unsatisfiable core [2022-01-18 03:07:50,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:07:53,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:07:53,208 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 29 treesize of output 29 [2022-01-18 03:07:53,853 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:07:53,853 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 54 treesize of output 36 [2022-01-18 03:07:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 03:07:54,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:07:55,918 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:07:55,919 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 176 treesize of output 236 [2022-01-18 03:07:55,941 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:07:55,941 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 124 treesize of output 142 [2022-01-18 03:08:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 03:08:04,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605763797] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:08:04,975 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:08:04,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 37, 32] total 107 [2022-01-18 03:08:04,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266732107] [2022-01-18 03:08:04,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:08:04,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-01-18 03:08:04,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:08:04,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-01-18 03:08:04,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=577, Invalid=10758, Unknown=7, NotChecked=0, Total=11342 [2022-01-18 03:08:04,977 INFO L87 Difference]: Start difference. First operand 1040 states and 2324 transitions. Second operand has 107 states, 107 states have (on average 3.8411214953271027) internal successors, (411), 107 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:08:41,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:08:41,096 INFO L93 Difference]: Finished difference Result 2567 states and 6238 transitions. [2022-01-18 03:08:41,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-01-18 03:08:41,096 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 3.8411214953271027) internal successors, (411), 107 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2022-01-18 03:08:41,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:08:41,106 INFO L225 Difference]: With dead ends: 2567 [2022-01-18 03:08:41,106 INFO L226 Difference]: Without dead ends: 2414 [2022-01-18 03:08:41,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 248 SyntacticMatches, 14 SemanticMatches, 240 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17729 ImplicationChecksByTransitivity, 38.9s TimeCoverageRelationStatistics Valid=5736, Invalid=52565, Unknown=21, NotChecked=0, Total=58322 [2022-01-18 03:08:41,109 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 5159 mSDsluCounter, 11058 mSDsCounter, 0 mSdLazyCounter, 7081 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5159 SdHoareTripleChecker+Valid, 10498 SdHoareTripleChecker+Invalid, 9677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 7081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1932 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-01-18 03:08:41,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5159 Valid, 10498 Invalid, 9677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 7081 Invalid, 0 Unknown, 1932 Unchecked, 4.7s Time] [2022-01-18 03:08:41,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2414 states. [2022-01-18 03:08:41,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2414 to 1207. [2022-01-18 03:08:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 1206 states have (on average 2.2761194029850746) internal successors, (2745), 1206 states have internal predecessors, (2745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:08:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 2745 transitions. [2022-01-18 03:08:41,137 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 2745 transitions. Word has length 153 [2022-01-18 03:08:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:08:41,138 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 2745 transitions. [2022-01-18 03:08:41,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 3.8411214953271027) internal successors, (411), 107 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:08:41,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 2745 transitions. [2022-01-18 03:08:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 03:08:41,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:08:41,141 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] [2022-01-18 03:08:41,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 03:08:41,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:08:41,355 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 03:08:41,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:08:41,356 INFO L85 PathProgramCache]: Analyzing trace with hash 2028444662, now seen corresponding path program 6 times [2022-01-18 03:08:41,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:08:41,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968225910] [2022-01-18 03:08:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:08:41,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:08:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:08:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:08:44,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:08:44,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968225910] [2022-01-18 03:08:44,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968225910] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:08:44,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232885617] [2022-01-18 03:08:44,621 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-18 03:08:44,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:08:44,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:08:44,624 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 03:08:44,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 03:08:44,715 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-01-18 03:08:44,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 03:08:44,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 90 conjunts are in the unsatisfiable core [2022-01-18 03:08:44,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:08:47,550 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 03:08:48,405 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 03:08:48,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:08:48,792 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 [2022-01-18 03:08:49,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 03:08:49,507 INFO L353 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-01-18 03:08:49,508 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 41 treesize of output 19 [2022-01-18 03:08:49,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:08:49,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 03:08:53,300 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:08:53,303 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 171 treesize of output 111 [2022-01-18 03:08:53,366 INFO L353 Elim1Store]: treesize reduction 12, result has 89.0 percent of original size [2022-01-18 03:08:53,366 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 950 treesize of output 902 [2022-01-18 03:08:53,393 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:08:53,393 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 782 treesize of output 626 [2022-01-18 03:08:53,432 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:08:53,432 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 602 treesize of output 590 [2022-01-18 03:09:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:09:21,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232885617] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 03:09:21,453 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 03:09:21,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 42, 36] total 105 [2022-01-18 03:09:21,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538482065] [2022-01-18 03:09:21,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 03:09:21,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-01-18 03:09:21,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:09:21,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-01-18 03:09:21,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=816, Invalid=10095, Unknown=9, NotChecked=0, Total=10920 [2022-01-18 03:09:21,455 INFO L87 Difference]: Start difference. First operand 1207 states and 2745 transitions. Second operand has 105 states, 105 states have (on average 3.5904761904761906) internal successors, (377), 105 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:09:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:09:49,693 INFO L93 Difference]: Finished difference Result 3757 states and 9534 transitions. [2022-01-18 03:09:49,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2022-01-18 03:09:49,694 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 3.5904761904761906) internal successors, (377), 105 states have internal predecessors, (377), 0 states have call successors, (0), 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 [2022-01-18 03:09:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:09:49,707 INFO L225 Difference]: With dead ends: 3757 [2022-01-18 03:09:49,707 INFO L226 Difference]: Without dead ends: 3604 [2022-01-18 03:09:49,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 244 SyntacticMatches, 20 SemanticMatches, 257 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22572 ImplicationChecksByTransitivity, 31.2s TimeCoverageRelationStatistics Valid=5834, Invalid=60957, Unknown=31, NotChecked=0, Total=66822 [2022-01-18 03:09:49,711 INFO L933 BasicCegarLoop]: 251 mSDtfsCounter, 3488 mSDsluCounter, 10579 mSDsCounter, 0 mSdLazyCounter, 6687 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 10215 SdHoareTripleChecker+Invalid, 9934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 6687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2864 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-01-18 03:09:49,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3488 Valid, 10215 Invalid, 9934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 6687 Invalid, 0 Unknown, 2864 Unchecked, 4.3s Time] [2022-01-18 03:09:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3604 states. [2022-01-18 03:09:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3604 to 1586. [2022-01-18 03:09:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 2.453627760252366) internal successors, (3889), 1585 states have internal predecessors, (3889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:09:49,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 3889 transitions. [2022-01-18 03:09:49,755 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 3889 transitions. Word has length 153 [2022-01-18 03:09:49,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:09:49,755 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 3889 transitions. [2022-01-18 03:09:49,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 3.5904761904761906) internal successors, (377), 105 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-18 03:09:49,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 3889 transitions. [2022-01-18 03:09:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-01-18 03:09:49,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:09:49,760 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] [2022-01-18 03:09:49,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 03:09:49,975 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,SelfDestructingSolverStorable12 [2022-01-18 03:09:49,976 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-18 03:09:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:09:49,976 INFO L85 PathProgramCache]: Analyzing trace with hash -520185780, now seen corresponding path program 7 times [2022-01-18 03:09:49,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:09:49,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071914540] [2022-01-18 03:09:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:09:49,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:09:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:09:52,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:09:52,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:09:52,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071914540] [2022-01-18 03:09:52,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071914540] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 03:09:52,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978150272] [2022-01-18 03:09:52,765 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-18 03:09:52,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:09:52,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:09:52,767 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 03:09:52,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 03:09:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:09:52,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 73 conjunts are in the unsatisfiable core [2022-01-18 03:09:52,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 03:09:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-18 03:09:56,043 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 29 treesize of output 29 [2022-01-18 03:09:56,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-18 03:09:56,555 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 03:09:56,556 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 46 treesize of output 24 [2022-01-18 03:09:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:09:57,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-01-18 03:09:58,045 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 03:09:58,047 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 03:09:58,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-18 03:09:58,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:09:58,091 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 03:09:58,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 03:09:58,248 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 1ms.. [2022-01-18 03:09:58,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-18 03:09:58,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-18 03:09:58,255 INFO L732 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1] [2022-01-18 03:09:58,257 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-18 03:09:58,257 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 03:09:58,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:09:58 BasicIcfg [2022-01-18 03:09:58,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 03:09:58,259 INFO L158 Benchmark]: Toolchain (without parser) took 727894.58ms. Allocated memory was 390.1MB in the beginning and 729.8MB in the end (delta: 339.7MB). Free memory was 336.6MB in the beginning and 262.4MB in the end (delta: 74.2MB). Peak memory consumption was 412.6MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,260 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 390.1MB. Free memory is still 352.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:09:58,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.69ms. Allocated memory is still 390.1MB. Free memory was 336.4MB in the beginning and 363.0MB in the end (delta: -26.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.70ms. Allocated memory is still 390.1MB. Free memory was 363.0MB in the beginning and 360.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,260 INFO L158 Benchmark]: Boogie Preprocessor took 25.42ms. Allocated memory is still 390.1MB. Free memory was 360.9MB in the beginning and 359.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,261 INFO L158 Benchmark]: RCFGBuilder took 491.44ms. Allocated memory is still 390.1MB. Free memory was 359.2MB in the beginning and 335.0MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,261 INFO L158 Benchmark]: TraceAbstraction took 727118.68ms. Allocated memory was 390.1MB in the beginning and 729.8MB in the end (delta: 339.7MB). Free memory was 334.6MB in the beginning and 262.4MB in the end (delta: 72.2MB). Peak memory consumption was 414.3MB. Max. memory is 16.0GB. [2022-01-18 03:09:58,266 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 390.1MB. Free memory is still 352.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 221.69ms. Allocated memory is still 390.1MB. Free memory was 336.4MB in the beginning and 363.0MB in the end (delta: -26.6MB). Peak memory consumption was 15.1MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.70ms. Allocated memory is still 390.1MB. Free memory was 363.0MB in the beginning and 360.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.42ms. Allocated memory is still 390.1MB. Free memory was 360.9MB in the beginning and 359.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 491.44ms. Allocated memory is still 390.1MB. Free memory was 359.2MB in the beginning and 335.0MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 727118.68ms. Allocated memory was 390.1MB in the beginning and 729.8MB in the end (delta: 339.7MB). Free memory was 334.6MB in the beginning and 262.4MB in the end (delta: 72.2MB). Peak memory consumption was 414.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 1ms.. - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 1ms.. - TimeoutResultAtElement [Line: 97]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 154 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 14 for 1ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 186 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 727.0s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 153.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21679 SdHoareTripleChecker+Valid, 17.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21679 mSDsluCounter, 53637 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 18998 IncrementalHoareTripleChecker+Unchecked, 55000 mSDsCounter, 1901 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28167 IncrementalHoareTripleChecker+Invalid, 49066 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1901 mSolverCounterUnsat, 2132 mSDtfsCounter, 28167 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2558 GetRequests, 1223 SyntacticMatches, 102 SemanticMatches, 1233 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 95918 ImplicationChecksByTransitivity, 179.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1586occurred in iteration=13, InterpolantAutomatonStates: 781, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 7204 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 561.9s InterpolantComputationTime, 2621 NumberOfCodeBlocks, 2608 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3363 ConstructedInterpolants, 325 QuantifiedInterpolants, 111139 SizeOfPredicates, 284 NumberOfNonLiveVariables, 1756 ConjunctsInSsa, 428 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 14/72 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown