/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 19:23:07,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 19:23:07,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 19:23:07,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 19:23:07,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 19:23:07,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 19:23:07,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 19:23:07,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 19:23:07,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 19:23:07,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 19:23:07,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 19:23:07,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 19:23:07,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 19:23:07,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 19:23:07,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 19:23:07,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 19:23:07,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 19:23:07,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 19:23:07,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 19:23:07,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 19:23:07,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 19:23:07,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 19:23:07,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 19:23:07,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 19:23:07,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 19:23:07,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 19:23:07,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 19:23:07,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 19:23:07,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 19:23:07,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 19:23:07,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 19:23:07,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 19:23:07,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 19:23:07,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 19:23:07,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 19:23:07,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 19:23:07,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 19:23:07,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 19:23:07,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 19:23:07,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 19:23:07,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 19:23:07,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 19:23:07,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 19:23:07,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 19:23:07,231 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 19:23:07,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 19:23:07,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 19:23:07,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 19:23:07,231 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 19:23:07,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 19:23:07,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 19:23:07,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 19:23:07,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 19:23:07,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 19:23:07,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 19:23:07,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:23:07,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 19:23:07,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 19:23:07,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 19:23:07,235 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 19:23:07,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 19:23:07,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 19:23:07,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 19:23:07,440 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 19:23:07,441 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 19:23:07,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c [2022-03-15 19:23:07,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69eaa27c/3fb7a1b17ac04ac88e8b0782c4ca755a/FLAGbb2a74b0d [2022-03-15 19:23:07,808 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 19:23:07,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c [2022-03-15 19:23:07,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69eaa27c/3fb7a1b17ac04ac88e8b0782c4ca755a/FLAGbb2a74b0d [2022-03-15 19:23:08,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a69eaa27c/3fb7a1b17ac04ac88e8b0782c4ca755a [2022-03-15 19:23:08,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 19:23:08,256 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 19:23:08,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 19:23:08,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 19:23:08,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 19:23:08,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599dc5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08, skipping insertion in model container [2022-03-15 19:23:08,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 19:23:08,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 19:23:08,459 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c[4232,4245] [2022-03-15 19:23:08,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:23:08,469 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 19:23:08,485 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-series2.wvr.c[4232,4245] [2022-03-15 19:23:08,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 19:23:08,497 INFO L208 MainTranslator]: Completed translation [2022-03-15 19:23:08,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08 WrapperNode [2022-03-15 19:23:08,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 19:23:08,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 19:23:08,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 19:23:08,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 19:23:08,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,528 INFO L137 Inliner]: procedures = 27, calls = 83, calls flagged for inlining = 22, calls inlined = 28, statements flattened = 346 [2022-03-15 19:23:08,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 19:23:08,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 19:23:08,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 19:23:08,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 19:23:08,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 19:23:08,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 19:23:08,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 19:23:08,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 19:23:08,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (1/1) ... [2022-03-15 19:23:08,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 19:23:08,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:23:08,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 19:23:08,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 19:23:08,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 19:23:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 19:23:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 19:23:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 19:23:08,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 19:23:08,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 19:23:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 19:23:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 19:23:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-15 19:23:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 19:23:08,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 19:23:08,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 19:23:08,615 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 19:23:08,683 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 19:23:08,684 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 19:23:09,053 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 19:23:09,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 19:23:09,232 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2022-03-15 19:23:09,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:23:09 BoogieIcfgContainer [2022-03-15 19:23:09,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 19:23:09,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 19:23:09,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 19:23:09,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 19:23:09,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 07:23:08" (1/3) ... [2022-03-15 19:23:09,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed28bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:23:09, skipping insertion in model container [2022-03-15 19:23:09,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 07:23:08" (2/3) ... [2022-03-15 19:23:09,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed28bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 07:23:09, skipping insertion in model container [2022-03-15 19:23:09,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 07:23:09" (3/3) ... [2022-03-15 19:23:09,248 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2022-03-15 19:23:09,255 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 19:23:09,255 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 19:23:09,255 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 19:23:09,255 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 19:23:09,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,298 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,299 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,299 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,300 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,301 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,302 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,303 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,303 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,303 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,303 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,304 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,306 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,306 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,306 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,306 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,307 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,308 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,309 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,310 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,310 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,311 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,312 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,313 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,314 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,315 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,315 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,316 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,318 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,323 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,324 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,327 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,327 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,327 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,327 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,327 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,328 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,329 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,329 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,332 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,333 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,334 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,334 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,334 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,335 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,336 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,337 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,338 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 19:23:09,341 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 19:23:09,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 19:23:09,373 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 19:23:09,373 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 19:23:09,381 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 19:23:09,387 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 256 places, 265 transitions, 562 flow [2022-03-15 19:23:09,388 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 256 places, 265 transitions, 562 flow [2022-03-15 19:23:09,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 256 places, 265 transitions, 562 flow [2022-03-15 19:23:09,481 INFO L129 PetriNetUnfolder]: 22/261 cut-off events. [2022-03-15 19:23:09,481 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-03-15 19:23:09,486 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 261 events. 22/261 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 128 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 222. Up to 2 conditions per place. [2022-03-15 19:23:09,489 INFO L116 LiptonReduction]: Number of co-enabled transitions 1824 [2022-03-15 19:23:16,585 INFO L131 LiptonReduction]: Checked pairs total: 3134 [2022-03-15 19:23:16,585 INFO L133 LiptonReduction]: Total number of compositions: 265 [2022-03-15 19:23:16,602 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 42 transitions, 116 flow [2022-03-15 19:23:16,656 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 527 states, 526 states have (on average 4.098859315589354) internal successors, (2156), 526 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand has 527 states, 526 states have (on average 4.098859315589354) internal successors, (2156), 526 states have internal predecessors, (2156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-03-15 19:23:16,685 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:16,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 19:23:16,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:16,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:16,689 INFO L85 PathProgramCache]: Analyzing trace with hash -788120774, now seen corresponding path program 1 times [2022-03-15 19:23:16,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:16,700 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849463601] [2022-03-15 19:23:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:16,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:17,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:23:17,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:17,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849463601] [2022-03-15 19:23:17,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849463601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:17,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:17,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 19:23:17,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051355009] [2022-03-15 19:23:17,065 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:17,072 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:17,179 INFO L252 McrAutomatonBuilder]: Finished intersection with 325 states and 948 transitions. [2022-03-15 19:23:17,179 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:19,470 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:23:19,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 19:23:19,471 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 19:23:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:23:19,487 INFO L87 Difference]: Start difference. First operand has 527 states, 526 states have (on average 4.098859315589354) internal successors, (2156), 526 states have internal predecessors, (2156), 0 states have call successors, (0), 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 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:19,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:19,541 INFO L93 Difference]: Finished difference Result 778 states and 3201 transitions. [2022-03-15 19:23:19,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:23:19,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2022-03-15 19:23:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:19,553 INFO L225 Difference]: With dead ends: 778 [2022-03-15 19:23:19,554 INFO L226 Difference]: Without dead ends: 749 [2022-03-15 19:23:19,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:23:19,556 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:19,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 19:23:19,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2022-03-15 19:23:19,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2022-03-15 19:23:19,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 748 states have (on average 4.124331550802139) internal successors, (3085), 748 states have internal predecessors, (3085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:19,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 3085 transitions. [2022-03-15 19:23:19,608 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 3085 transitions. Word has length 28 [2022-03-15 19:23:19,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:19,608 INFO L470 AbstractCegarLoop]: Abstraction has 749 states and 3085 transitions. [2022-03-15 19:23:19,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:19,608 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 3085 transitions. [2022-03-15 19:23:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-15 19:23:19,611 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:19,611 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] [2022-03-15 19:23:19,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 19:23:19,611 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:19,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:19,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1768319932, now seen corresponding path program 1 times [2022-03-15 19:23:19,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:19,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707481044] [2022-03-15 19:23:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:23:19,659 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:19,659 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707481044] [2022-03-15 19:23:19,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707481044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:19,659 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:19,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 19:23:19,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1289055459] [2022-03-15 19:23:19,659 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:19,664 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:19,878 INFO L252 McrAutomatonBuilder]: Finished intersection with 485 states and 1486 transitions. [2022-03-15 19:23:19,878 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:23,040 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [3595#(or (< ~q2_front~0 0) (<= ~q2_back~0 ~q2_front~0))] [2022-03-15 19:23:23,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:23:23,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:23,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:23:23,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:23:23,041 INFO L87 Difference]: Start difference. First operand 749 states and 3085 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:23,105 INFO L93 Difference]: Finished difference Result 1103 states and 4353 transitions. [2022-03-15 19:23:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:23:23,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 30 [2022-03-15 19:23:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:23,110 INFO L225 Difference]: With dead ends: 1103 [2022-03-15 19:23:23,110 INFO L226 Difference]: Without dead ends: 1073 [2022-03-15 19:23:23,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:23:23,111 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 28 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:23,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 11 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2022-03-15 19:23:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 979. [2022-03-15 19:23:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 978 states have (on average 4.04601226993865) internal successors, (3957), 978 states have internal predecessors, (3957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:23,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 3957 transitions. [2022-03-15 19:23:23,133 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 3957 transitions. Word has length 30 [2022-03-15 19:23:23,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:23,133 INFO L470 AbstractCegarLoop]: Abstraction has 979 states and 3957 transitions. [2022-03-15 19:23:23,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:23,133 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 3957 transitions. [2022-03-15 19:23:23,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-15 19:23:23,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:23,135 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] [2022-03-15 19:23:23,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 19:23:23,136 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1237536184, now seen corresponding path program 1 times [2022-03-15 19:23:23,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:23,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012695691] [2022-03-15 19:23:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:23,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:23,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:23:23,197 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:23,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012695691] [2022-03-15 19:23:23,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012695691] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:23,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:23,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 19:23:23,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2147347262] [2022-03-15 19:23:23,200 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:23,205 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:23,380 INFO L252 McrAutomatonBuilder]: Finished intersection with 343 states and 990 transitions. [2022-03-15 19:23:23,380 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:24,959 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:23:24,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 19:23:24,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:24,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 19:23:24,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:23:24,960 INFO L87 Difference]: Start difference. First operand 979 states and 3957 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:25,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:25,078 INFO L93 Difference]: Finished difference Result 1329 states and 5116 transitions. [2022-03-15 19:23:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 19:23:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 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 30 [2022-03-15 19:23:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:25,088 INFO L225 Difference]: With dead ends: 1329 [2022-03-15 19:23:25,088 INFO L226 Difference]: Without dead ends: 1271 [2022-03-15 19:23:25,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 281 SyntacticMatches, 32 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 19:23:25,105 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:25,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 8 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:25,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2022-03-15 19:23:25,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1149. [2022-03-15 19:23:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 1148 states have (on average 3.9634146341463414) internal successors, (4550), 1148 states have internal predecessors, (4550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 4550 transitions. [2022-03-15 19:23:25,131 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 4550 transitions. Word has length 30 [2022-03-15 19:23:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:25,131 INFO L470 AbstractCegarLoop]: Abstraction has 1149 states and 4550 transitions. [2022-03-15 19:23:25,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 4550 transitions. [2022-03-15 19:23:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 19:23:25,135 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:25,135 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] [2022-03-15 19:23:25,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 19:23:25,135 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:25,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:25,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1591544778, now seen corresponding path program 1 times [2022-03-15 19:23:25,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:25,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820321219] [2022-03-15 19:23:25,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:25,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:23:25,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:25,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820321219] [2022-03-15 19:23:25,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820321219] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:25,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:25,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 19:23:25,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [180434968] [2022-03-15 19:23:25,201 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:25,206 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:25,279 INFO L252 McrAutomatonBuilder]: Finished intersection with 265 states and 719 transitions. [2022-03-15 19:23:25,279 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:26,651 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:26,654 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 20 treesize of output 4 [2022-03-15 19:23:26,718 WARN L234 Elim1Store]: Array PQE input equivalent to true [2022-03-15 19:23:26,754 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:23:26,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:23:26,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:26,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:23:26,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:23:26,755 INFO L87 Difference]: Start difference. First operand 1149 states and 4550 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:26,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:26,858 INFO L93 Difference]: Finished difference Result 2220 states and 8210 transitions. [2022-03-15 19:23:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 19:23:26,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 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 31 [2022-03-15 19:23:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:26,868 INFO L225 Difference]: With dead ends: 2220 [2022-03-15 19:23:26,869 INFO L226 Difference]: Without dead ends: 2116 [2022-03-15 19:23:26,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 19:23:26,870 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 72 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:26,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 23 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-03-15 19:23:26,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1389. [2022-03-15 19:23:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 3.9373198847262247) internal successors, (5465), 1388 states have internal predecessors, (5465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 5465 transitions. [2022-03-15 19:23:26,910 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 5465 transitions. Word has length 31 [2022-03-15 19:23:26,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:26,911 INFO L470 AbstractCegarLoop]: Abstraction has 1389 states and 5465 transitions. [2022-03-15 19:23:26,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:26,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 5465 transitions. [2022-03-15 19:23:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-03-15 19:23:26,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:26,916 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] [2022-03-15 19:23:26,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 19:23:26,917 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:26,918 INFO L85 PathProgramCache]: Analyzing trace with hash -673522948, now seen corresponding path program 1 times [2022-03-15 19:23:26,918 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:26,919 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126602284] [2022-03-15 19:23:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 19:23:26,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:26,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126602284] [2022-03-15 19:23:26,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126602284] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:26,980 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:26,980 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 19:23:26,980 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [978467499] [2022-03-15 19:23:26,980 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:26,987 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:27,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 347 states and 989 transitions. [2022-03-15 19:23:27,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:29,139 WARN L234 Elim1Store]: Array PQE input equivalent to true [2022-03-15 19:23:29,166 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 19:23:29,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-15 19:23:29,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-15 19:23:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:23:29,167 INFO L87 Difference]: Start difference. First operand 1389 states and 5465 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:29,245 INFO L93 Difference]: Finished difference Result 2065 states and 7737 transitions. [2022-03-15 19:23:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-15 19:23:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 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 31 [2022-03-15 19:23:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:29,255 INFO L225 Difference]: With dead ends: 2065 [2022-03-15 19:23:29,255 INFO L226 Difference]: Without dead ends: 1889 [2022-03-15 19:23:29,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-15 19:23:29,256 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:29,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 18 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:29,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2022-03-15 19:23:29,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1701. [2022-03-15 19:23:29,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 3.91) internal successors, (6647), 1700 states have internal predecessors, (6647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 6647 transitions. [2022-03-15 19:23:29,295 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 6647 transitions. Word has length 31 [2022-03-15 19:23:29,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:29,295 INFO L470 AbstractCegarLoop]: Abstraction has 1701 states and 6647 transitions. [2022-03-15 19:23:29,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:29,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 6647 transitions. [2022-03-15 19:23:29,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 19:23:29,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:29,299 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] [2022-03-15 19:23:29,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 19:23:29,299 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:29,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:29,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1457288638, now seen corresponding path program 1 times [2022-03-15 19:23:29,300 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:29,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571047821] [2022-03-15 19:23:29,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:29,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:29,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 19:23:29,449 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:29,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571047821] [2022-03-15 19:23:29,450 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571047821] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:29,450 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:29,450 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:23:29,450 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [670471548] [2022-03-15 19:23:29,450 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:29,455 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:29,524 INFO L252 McrAutomatonBuilder]: Finished intersection with 266 states and 720 transitions. [2022-03-15 19:23:29,525 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:30,783 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:30,784 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 20 treesize of output 4 [2022-03-15 19:23:30,949 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 3 new interpolants: [20770#(or (< (+ ~i~0 1) ~N~0) (not (< ~i~0 ~N~0))), 20769#(or (< (+ ~i~0 1) ~N~0) (= 0 (mod |thread1Thread1of1ForFork3_~cond~0#1| 256))), 20768#(not (= 0 (mod |thread1Thread1of1ForFork3_~cond~0#1| 256)))] [2022-03-15 19:23:30,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 19:23:30,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:30,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 19:23:30,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-03-15 19:23:30,950 INFO L87 Difference]: Start difference. First operand 1701 states and 6647 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:31,265 INFO L93 Difference]: Finished difference Result 2673 states and 9972 transitions. [2022-03-15 19:23:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:23:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 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 32 [2022-03-15 19:23:31,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:31,284 INFO L225 Difference]: With dead ends: 2673 [2022-03-15 19:23:31,284 INFO L226 Difference]: Without dead ends: 2544 [2022-03-15 19:23:31,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-03-15 19:23:31,286 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 223 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:31,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 5 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:23:31,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2022-03-15 19:23:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 1703. [2022-03-15 19:23:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1702 states have (on average 3.9071680376028204) internal successors, (6650), 1702 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:31,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 6650 transitions. [2022-03-15 19:23:31,343 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 6650 transitions. Word has length 32 [2022-03-15 19:23:31,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:31,345 INFO L470 AbstractCegarLoop]: Abstraction has 1703 states and 6650 transitions. [2022-03-15 19:23:31,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 6650 transitions. [2022-03-15 19:23:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-03-15 19:23:31,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:31,351 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] [2022-03-15 19:23:31,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 19:23:31,351 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash -118667014, now seen corresponding path program 1 times [2022-03-15 19:23:31,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:31,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498199524] [2022-03-15 19:23:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:31,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:31,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 19:23:31,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:31,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498199524] [2022-03-15 19:23:31,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498199524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:31,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:31,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:23:31,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [130801289] [2022-03-15 19:23:31,490 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:31,498 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:31,602 INFO L252 McrAutomatonBuilder]: Finished intersection with 348 states and 990 transitions. [2022-03-15 19:23:31,602 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:33,604 WARN L234 Elim1Store]: Array PQE input equivalent to true [2022-03-15 19:23:33,667 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [26862#(not (= (mod |thread2Thread1of1ForFork1_~cond~1#1| 256) 0))] [2022-03-15 19:23:33,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:23:33,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:23:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:23:33,668 INFO L87 Difference]: Start difference. First operand 1703 states and 6650 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:33,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:33,818 INFO L93 Difference]: Finished difference Result 1945 states and 7331 transitions. [2022-03-15 19:23:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:23:33,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 32 [2022-03-15 19:23:33,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:33,829 INFO L225 Difference]: With dead ends: 1945 [2022-03-15 19:23:33,829 INFO L226 Difference]: Without dead ends: 1794 [2022-03-15 19:23:33,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 312 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-03-15 19:23:33,830 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 69 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:33,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 7 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2022-03-15 19:23:33,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1704. [2022-03-15 19:23:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1703 states have (on average 3.9048737522019965) internal successors, (6650), 1703 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:33,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 6650 transitions. [2022-03-15 19:23:33,874 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 6650 transitions. Word has length 32 [2022-03-15 19:23:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:33,875 INFO L470 AbstractCegarLoop]: Abstraction has 1704 states and 6650 transitions. [2022-03-15 19:23:33,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:33,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 6650 transitions. [2022-03-15 19:23:33,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-15 19:23:33,878 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:33,878 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] [2022-03-15 19:23:33,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 19:23:33,878 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash -153779052, now seen corresponding path program 1 times [2022-03-15 19:23:33,879 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:33,879 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29891547] [2022-03-15 19:23:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:33,996 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 19:23:33,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:33,996 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29891547] [2022-03-15 19:23:33,996 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29891547] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:33,996 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:33,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:23:33,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [112775871] [2022-03-15 19:23:33,997 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:34,002 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:34,081 INFO L252 McrAutomatonBuilder]: Finished intersection with 267 states and 721 transitions. [2022-03-15 19:23:34,081 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:36,657 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [32226#(not (= (mod |thread4Thread1of1ForFork0_~cond~3#1| 256) 0))] [2022-03-15 19:23:36,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:23:36,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:23:36,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:23:36,659 INFO L87 Difference]: Start difference. First operand 1704 states and 6650 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:36,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:36,778 INFO L93 Difference]: Finished difference Result 1864 states and 7200 transitions. [2022-03-15 19:23:36,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:23:36,778 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 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 33 [2022-03-15 19:23:36,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:36,785 INFO L225 Difference]: With dead ends: 1864 [2022-03-15 19:23:36,785 INFO L226 Difference]: Without dead ends: 1493 [2022-03-15 19:23:36,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:23:36,786 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 79 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:36,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 5 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:36,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-03-15 19:23:36,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1253. [2022-03-15 19:23:36,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1252 states have (on average 3.9400958466453675) internal successors, (4933), 1252 states have internal predecessors, (4933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:36,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 4933 transitions. [2022-03-15 19:23:36,815 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 4933 transitions. Word has length 33 [2022-03-15 19:23:36,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:36,815 INFO L470 AbstractCegarLoop]: Abstraction has 1253 states and 4933 transitions. [2022-03-15 19:23:36,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 4933 transitions. [2022-03-15 19:23:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-03-15 19:23:36,818 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:36,819 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] [2022-03-15 19:23:36,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 19:23:36,819 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:36,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1921340672, now seen corresponding path program 1 times [2022-03-15 19:23:36,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:36,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176993014] [2022-03-15 19:23:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:36,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-03-15 19:23:36,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:36,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176993014] [2022-03-15 19:23:36,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176993014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:36,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:36,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:23:36,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1701505138] [2022-03-15 19:23:36,907 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:36,915 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:37,041 INFO L252 McrAutomatonBuilder]: Finished intersection with 349 states and 991 transitions. [2022-03-15 19:23:37,042 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:38,955 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [36605#(not (= 0 (mod |thread1Thread1of1ForFork3_~cond~0#1| 256)))] [2022-03-15 19:23:38,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:23:38,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:23:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:23:38,956 INFO L87 Difference]: Start difference. First operand 1253 states and 4933 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:39,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:39,066 INFO L93 Difference]: Finished difference Result 1131 states and 4313 transitions. [2022-03-15 19:23:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 19:23:39,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 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 33 [2022-03-15 19:23:39,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:39,070 INFO L225 Difference]: With dead ends: 1131 [2022-03-15 19:23:39,070 INFO L226 Difference]: Without dead ends: 890 [2022-03-15 19:23:39,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:23:39,071 INFO L933 BasicCegarLoop]: 1 mSDtfsCounter, 37 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:39,071 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 2 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2022-03-15 19:23:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 890. [2022-03-15 19:23:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 889 states have (on average 3.953880764904387) internal successors, (3515), 889 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 3515 transitions. [2022-03-15 19:23:39,097 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 3515 transitions. Word has length 33 [2022-03-15 19:23:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:39,097 INFO L470 AbstractCegarLoop]: Abstraction has 890 states and 3515 transitions. [2022-03-15 19:23:39,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 3515 transitions. [2022-03-15 19:23:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 19:23:39,099 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:39,099 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] [2022-03-15 19:23:39,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 19:23:39,100 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:39,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1575685074, now seen corresponding path program 1 times [2022-03-15 19:23:39,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:39,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164097104] [2022-03-15 19:23:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:39,189 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 19:23:39,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:39,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164097104] [2022-03-15 19:23:39,189 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164097104] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:23:39,189 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608395918] [2022-03-15 19:23:39,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:39,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:23:39,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:23:39,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:23:39,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 19:23:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:39,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 19:23:39,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:23:39,448 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 19:23:39,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-15 19:23:39,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608395918] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:39,449 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-15 19:23:39,449 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2022-03-15 19:23:39,449 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [876645253] [2022-03-15 19:23:39,449 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:39,457 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:39,559 INFO L252 McrAutomatonBuilder]: Finished intersection with 280 states and 746 transitions. [2022-03-15 19:23:39,559 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:41,894 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:41,894 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 20 treesize of output 4 [2022-03-15 19:23:42,018 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:42,019 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 20 treesize of output 4 [2022-03-15 19:23:42,080 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:42,081 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 20 treesize of output 4 [2022-03-15 19:23:42,164 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [39628#(or (<= ~q1_front~0 ~q1_back~0) (<= 2147483647 ~q1_back~0) (< ~q1_back~0 0)), 39627#(not (= (mod |thread3Thread1of1ForFork2_~cond~2#1| 256) 0))] [2022-03-15 19:23:42,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:23:42,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:42,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:23:42,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-03-15 19:23:42,165 INFO L87 Difference]: Start difference. First operand 890 states and 3515 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:42,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:42,320 INFO L93 Difference]: Finished difference Result 1632 states and 6503 transitions. [2022-03-15 19:23:42,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:23:42,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 35 [2022-03-15 19:23:42,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:42,326 INFO L225 Difference]: With dead ends: 1632 [2022-03-15 19:23:42,326 INFO L226 Difference]: Without dead ends: 1632 [2022-03-15 19:23:42,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 252 SyntacticMatches, 22 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-15 19:23:42,326 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 124 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:42,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 30 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 19:23:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-03-15 19:23:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1068. [2022-03-15 19:23:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 3.980318650421743) internal successors, (4247), 1067 states have internal predecessors, (4247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:42,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 4247 transitions. [2022-03-15 19:23:42,351 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 4247 transitions. Word has length 35 [2022-03-15 19:23:42,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:42,351 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 4247 transitions. [2022-03-15 19:23:42,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 4247 transitions. [2022-03-15 19:23:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 19:23:42,354 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:42,354 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] [2022-03-15 19:23:42,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 19:23:42,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-15 19:23:42,571 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:42,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2106468822, now seen corresponding path program 1 times [2022-03-15 19:23:42,573 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:42,573 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901290289] [2022-03-15 19:23:42,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:42,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 19:23:42,636 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:42,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901290289] [2022-03-15 19:23:42,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901290289] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:23:42,636 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875547759] [2022-03-15 19:23:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:42,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:23:42,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:23:42,638 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:23:42,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 19:23:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:42,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 9 conjunts are in the unsatisfiable core [2022-03-15 19:23:42,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:23:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 19:23:42,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:23:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-15 19:23:42,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875547759] provided 1 perfect and 1 imperfect interpolant sequences [2022-03-15 19:23:42,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-03-15 19:23:42,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 5] total 9 [2022-03-15 19:23:42,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2052101524] [2022-03-15 19:23:42,940 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:42,946 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:43,040 INFO L252 McrAutomatonBuilder]: Finished intersection with 200 states and 494 transitions. [2022-03-15 19:23:43,040 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:45,820 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:45,820 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 20 treesize of output 4 [2022-03-15 19:23:45,873 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:45,874 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 20 treesize of output 4 [2022-03-15 19:23:45,985 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:23:45,985 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 36 treesize of output 31 [2022-03-15 19:23:46,038 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:46,038 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 20 treesize of output 4 [2022-03-15 19:23:46,116 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 8 new interpolants: [43625#(or (<= 2147483647 ~q1_back~0) (<= (+ 1 ~q2_front~0) ~q2_back~0) (< ~q1_back~0 0)), 43626#(or (<= 2147483647 ~q1_back~0) (<= ~q2_front~0 ~q2_back~0) (< ~q1_back~0 0)), 43622#(< ~q1_front~0 ~q1_back~0), 43620#(or (< 0 (mod |thread4Thread1of1ForFork0_~cond~3#1| 256)) (not (= (mod |thread3Thread1of1ForFork2_~cond~2#1| 256) 0))), 43621#(or (<= (+ 1 ~q2_front~0) ~q2_back~0) (not (= (mod |thread3Thread1of1ForFork2_~cond~2#1| 256) 0))), 43624#(or (<= (+ 1 ~q2_front~0) ~q2_back~0) (< ~q1_front~0 ~q1_back~0)), 43623#(or (< ~q1_front~0 ~q1_back~0) (not (= (mod |thread4Thread1of1ForFork0_~cond~3#1| 256) 0))), 43619#(not (= (mod |thread3Thread1of1ForFork2_~cond~2#1| 256) 0))] [2022-03-15 19:23:46,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-15 19:23:46,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:46,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-15 19:23:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-03-15 19:23:46,117 INFO L87 Difference]: Start difference. First operand 1068 states and 4247 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:46,551 INFO L93 Difference]: Finished difference Result 1644 states and 6441 transitions. [2022-03-15 19:23:46,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 19:23:46,551 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 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 35 [2022-03-15 19:23:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:46,556 INFO L225 Difference]: With dead ends: 1644 [2022-03-15 19:23:46,557 INFO L226 Difference]: Without dead ends: 1644 [2022-03-15 19:23:46,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 190 SyntacticMatches, 30 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-03-15 19:23:46,557 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 174 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:46,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 46 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 19:23:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2022-03-15 19:23:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1046. [2022-03-15 19:23:46,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 1045 states have (on average 3.9473684210526314) internal successors, (4125), 1045 states have internal predecessors, (4125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 4125 transitions. [2022-03-15 19:23:46,580 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 4125 transitions. Word has length 35 [2022-03-15 19:23:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:46,580 INFO L470 AbstractCegarLoop]: Abstraction has 1046 states and 4125 transitions. [2022-03-15 19:23:46,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 4125 transitions. [2022-03-15 19:23:46,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-15 19:23:46,583 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:46,583 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] [2022-03-15 19:23:46,600 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 19:23:46,795 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,SelfDestructingSolverStorable10 [2022-03-15 19:23:46,795 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:46,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:46,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1694680430, now seen corresponding path program 2 times [2022-03-15 19:23:46,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:46,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303932490] [2022-03-15 19:23:46,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:46,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:46,931 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-03-15 19:23:46,931 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:46,931 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303932490] [2022-03-15 19:23:46,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303932490] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 19:23:46,931 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 19:23:46,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 19:23:46,931 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2104570428] [2022-03-15 19:23:46,931 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 19:23:46,936 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 19:23:47,004 INFO L252 McrAutomatonBuilder]: Finished intersection with 204 states and 502 transitions. [2022-03-15 19:23:47,005 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 19:23:48,011 INFO L353 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-03-15 19:23:48,012 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 20 treesize of output 4 [2022-03-15 19:23:48,280 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [47385#(not (= (mod |thread3Thread1of1ForFork2_~cond~2#1| 256) 0))] [2022-03-15 19:23:48,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-03-15 19:23:48,280 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 19:23:48,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-03-15 19:23:48,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-03-15 19:23:48,281 INFO L87 Difference]: Start difference. First operand 1046 states and 4125 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 19:23:48,519 INFO L93 Difference]: Finished difference Result 1338 states and 5293 transitions. [2022-03-15 19:23:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 19:23:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 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 35 [2022-03-15 19:23:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 19:23:48,523 INFO L225 Difference]: With dead ends: 1338 [2022-03-15 19:23:48,523 INFO L226 Difference]: Without dead ends: 1338 [2022-03-15 19:23:48,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-03-15 19:23:48,524 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 48 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 19:23:48,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 5 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 19:23:48,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2022-03-15 19:23:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 966. [2022-03-15 19:23:48,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 965 states have (on average 3.9181347150259067) internal successors, (3781), 965 states have internal predecessors, (3781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 3781 transitions. [2022-03-15 19:23:48,551 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 3781 transitions. Word has length 35 [2022-03-15 19:23:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 19:23:48,551 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 3781 transitions. [2022-03-15 19:23:48,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 19:23:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 3781 transitions. [2022-03-15 19:23:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-03-15 19:23:48,554 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 19:23:48,554 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] [2022-03-15 19:23:48,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 19:23:48,554 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 19:23:48,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 19:23:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1851198124, now seen corresponding path program 1 times [2022-03-15 19:23:48,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 19:23:48,555 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506252644] [2022-03-15 19:23:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 19:23:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:23:49,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 19:23:49,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506252644] [2022-03-15 19:23:49,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506252644] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 19:23:49,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315539477] [2022-03-15 19:23:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 19:23:49,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:23:49,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 19:23:49,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 19:23:49,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 19:23:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 19:23:49,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-15 19:23:49,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 19:23:50,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:23:50,273 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 11 treesize of output 7 [2022-03-15 19:23:50,403 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-03-15 19:23:50,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-03-15 19:23:50,494 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 [2022-03-15 19:23:50,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:23:50,740 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-03-15 19:23:51,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:23:51,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:23:51,249 INFO L353 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-03-15 19:23:51,249 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 48 [2022-03-15 19:23:51,260 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-03-15 19:23:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:23:51,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-15 19:23:51,558 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-03-15 19:23:51,558 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 38 [2022-03-15 19:23:51,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-15 19:23:51,709 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:23:51,710 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 37 treesize of output 21 [2022-03-15 19:23:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 19:23:51,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 19:23:53,462 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:23:53,462 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 270 treesize of output 186 [2022-03-15 19:23:53,807 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:23:53,809 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 8019942 treesize of output 7800646 [2022-03-15 19:24:07,514 WARN L228 SmtUtils]: Spent 13.70s on a formula simplification that was a NOOP. DAG size: 2321 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:24:07,789 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:24:07,791 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 7800646 treesize of output 7472162 [2022-03-15 19:24:21,203 WARN L228 SmtUtils]: Spent 13.41s on a formula simplification that was a NOOP. DAG size: 2363 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:24:21,407 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:24:21,410 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 7472162 treesize of output 6814974 [2022-03-15 19:24:35,041 WARN L228 SmtUtils]: Spent 13.62s on a formula simplification that was a NOOP. DAG size: 2405 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:24:35,250 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:24:35,252 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 6814974 treesize of output 6650842 [2022-03-15 19:24:48,874 WARN L228 SmtUtils]: Spent 13.62s on a formula simplification that was a NOOP. DAG size: 2447 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:02,546 WARN L228 SmtUtils]: Spent 13.67s on a formula simplification that was a NOOP. DAG size: 2442 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:02,649 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 6561773 treesize of output 5775341 [2022-03-15 19:25:16,237 WARN L228 SmtUtils]: Spent 13.59s on a formula simplification that was a NOOP. DAG size: 2441 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:16,368 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:25:16,369 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 5775341 treesize of output 5701630 [2022-03-15 19:25:29,882 WARN L228 SmtUtils]: Spent 13.51s on a formula simplification that was a NOOP. DAG size: 2443 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:29,993 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-15 19:25:29,994 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 5701613 treesize of output 4521982 [2022-03-15 19:25:43,520 WARN L228 SmtUtils]: Spent 13.52s on a formula simplification that was a NOOP. DAG size: 2445 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:43,595 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 4521965 treesize of output 4472813 [2022-03-15 19:25:57,151 WARN L228 SmtUtils]: Spent 13.55s on a formula simplification that was a NOOP. DAG size: 2444 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 19:25:57,218 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-03-15 19:25:57,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 19:25:57,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 19:25:57,436 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-15 19:25:57,439 INFO L158 Benchmark]: Toolchain (without parser) took 169183.36ms. Allocated memory was 182.5MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 161.7MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory was 148.5MB in the beginning and 148.4MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.54ms. Allocated memory was 182.5MB in the beginning and 233.8MB in the end (delta: 51.4MB). Free memory was 161.7MB in the beginning and 208.7MB in the end (delta: -47.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.99ms. Allocated memory is still 233.8MB. Free memory was 208.7MB in the beginning and 205.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: Boogie Preprocessor took 22.76ms. Allocated memory is still 233.8MB. Free memory was 205.7MB in the beginning and 203.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: RCFGBuilder took 690.59ms. Allocated memory is still 233.8MB. Free memory was 203.6MB in the beginning and 159.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-03-15 19:25:57,440 INFO L158 Benchmark]: TraceAbstraction took 168195.61ms. Allocated memory was 233.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 159.0MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-15 19:25:57,441 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 182.5MB. Free memory was 148.5MB in the beginning and 148.4MB in the end (delta: 71.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 240.54ms. Allocated memory was 182.5MB in the beginning and 233.8MB in the end (delta: 51.4MB). Free memory was 161.7MB in the beginning and 208.7MB in the end (delta: -47.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.99ms. Allocated memory is still 233.8MB. Free memory was 208.7MB in the beginning and 205.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.76ms. Allocated memory is still 233.8MB. Free memory was 205.7MB in the beginning and 203.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 690.59ms. Allocated memory is still 233.8MB. Free memory was 203.6MB in the beginning and 159.5MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * TraceAbstraction took 168195.61ms. Allocated memory was 233.8MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 159.0MB in the beginning and 1.2GB in the end (delta: -1.0GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 256 PlacesBefore, 48 PlacesAfterwards, 265 TransitionsBefore, 42 TransitionsAfterwards, 1824 CoEnabledTransitionPairs, 8 FixpointIterations, 184 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 8 ConcurrentYvCompositions, 15 ChoiceCompositions, 265 TotalNumberOfCompositions, 3134 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2481, positive: 2401, positive conditional: 0, positive unconditional: 2401, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 933, positive: 915, positive conditional: 0, positive unconditional: 915, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2481, positive: 1486, positive conditional: 0, positive unconditional: 1486, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 933, unknown conditional: 0, unknown unconditional: 933] , Statistics on independence cache: Total cache size (in pairs): 128, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-03-15 19:25:57,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...