/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/bench-exp2x9.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 18:23:33,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 18:23:33,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 18:23:33,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 18:23:33,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 18:23:33,524 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 18:23:33,526 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 18:23:33,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 18:23:33,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 18:23:33,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 18:23:33,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 18:23:33,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 18:23:33,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 18:23:33,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 18:23:33,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 18:23:33,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 18:23:33,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 18:23:33,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 18:23:33,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 18:23:33,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 18:23:33,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 18:23:33,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 18:23:33,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 18:23:33,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 18:23:33,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-15 18:23:33,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-15 18:23:33,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-15 18:23:33,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-15 18:23:33,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-15 18:23:33,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-15 18:23:33,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-15 18:23:33,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-15 18:23:33,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-15 18:23:33,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-15 18:23:33,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-15 18:23:33,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-15 18:23:33,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-15 18:23:33,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-15 18:23:33,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 18:23:33,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 18:23:33,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 18:23:33,562 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 18:23:33,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 18:23:33,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 18:23:33,585 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 18:23:33,586 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 18:23:33,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 18:23:33,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 18:23:33,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 18:23:33,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:23:33,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 18:23:33,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 18:23:33,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 18:23:33,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 18:23:33,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 18:23:33,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 18:23:33,775 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 18:23:33,775 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 18:23:33,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-03-15 18:23:33,820 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beed7c556/1ddff9c99bef4bd3abbba545906b4ef0/FLAGae2af303b [2022-03-15 18:23:34,118 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 18:23:34,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2022-03-15 18:23:34,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beed7c556/1ddff9c99bef4bd3abbba545906b4ef0/FLAGae2af303b [2022-03-15 18:23:34,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beed7c556/1ddff9c99bef4bd3abbba545906b4ef0 [2022-03-15 18:23:34,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 18:23:34,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 18:23:34,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 18:23:34,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 18:23:34,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 18:23:34,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1382020c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34, skipping insertion in model container [2022-03-15 18:23:34,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 18:23:34,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 18:23:34,742 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/bench-exp2x9.wvr.c[2669,2682] [2022-03-15 18:23:34,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:23:34,754 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 18:23:34,784 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/bench-exp2x9.wvr.c[2669,2682] [2022-03-15 18:23:34,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 18:23:34,799 INFO L208 MainTranslator]: Completed translation [2022-03-15 18:23:34,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34 WrapperNode [2022-03-15 18:23:34,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 18:23:34,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 18:23:34,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 18:23:34,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 18:23:34,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,840 INFO L137 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-03-15 18:23:34,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 18:23:34,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 18:23:34,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 18:23:34,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 18:23:34,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 18:23:34,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 18:23:34,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 18:23:34,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 18:23:34,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (1/1) ... [2022-03-15 18:23:34,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 18:23:34,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:23:34,902 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 18:23:34,921 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 18:23:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 18:23:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 18:23:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 18:23:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 18:23:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 18:23:34,934 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 18:23:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 18:23:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 18:23:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 18:23:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 18:23:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 18:23:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 18:23:34,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 18:23:34,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 18:23:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 18:23:34,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 18:23:34,937 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 18:23:35,011 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 18:23:35,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 18:23:35,262 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 18:23:35,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 18:23:35,269 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 18:23:35,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:23:35 BoogieIcfgContainer [2022-03-15 18:23:35,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 18:23:35,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 18:23:35,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 18:23:35,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 18:23:35,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 06:23:34" (1/3) ... [2022-03-15 18:23:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb6c8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:23:35, skipping insertion in model container [2022-03-15 18:23:35,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 06:23:34" (2/3) ... [2022-03-15 18:23:35,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb6c8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 06:23:35, skipping insertion in model container [2022-03-15 18:23:35,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 06:23:35" (3/3) ... [2022-03-15 18:23:35,280 INFO L111 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2022-03-15 18:23:35,283 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 18:23:35,283 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 18:23:35,284 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 18:23:35,284 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 18:23:35,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,342 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,343 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,345 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,347 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,347 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,347 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,347 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,350 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,350 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,351 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,357 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,358 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,358 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,359 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,359 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,359 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,359 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 18:23:35,362 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 18:23:35,391 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 18:23:35,396 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 18:23:35,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 18:23:35,408 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 18:23:35,415 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 149 transitions, 330 flow [2022-03-15 18:23:35,417 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 149 transitions, 330 flow [2022-03-15 18:23:35,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 149 transitions, 330 flow [2022-03-15 18:23:35,456 INFO L129 PetriNetUnfolder]: 10/145 cut-off events. [2022-03-15 18:23:35,457 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-03-15 18:23:35,461 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 145 events. 10/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 131 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 102. Up to 2 conditions per place. [2022-03-15 18:23:35,463 INFO L116 LiptonReduction]: Number of co-enabled transitions 3312 [2022-03-15 18:23:38,684 INFO L131 LiptonReduction]: Checked pairs total: 3131 [2022-03-15 18:23:38,685 INFO L133 LiptonReduction]: Total number of compositions: 127 [2022-03-15 18:23:38,690 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 92 flow [2022-03-15 18:23:38,707 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:38,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-15 18:23:38,715 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:23:38,715 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] [2022-03-15 18:23:38,715 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 18:23:38,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:23:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash 982795680, now seen corresponding path program 1 times [2022-03-15 18:23:38,743 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:23:38,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108225608] [2022-03-15 18:23:38,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:23:38,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:23:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:23:39,109 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 18:23:39,110 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:23:39,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108225608] [2022-03-15 18:23:39,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108225608] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:23:39,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:23:39,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-03-15 18:23:39,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1058055859] [2022-03-15 18:23:39,112 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:23:39,116 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:23:39,144 INFO L252 McrAutomatonBuilder]: Finished intersection with 92 states and 208 transitions. [2022-03-15 18:23:39,144 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:23:41,004 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2022-03-15 18:23:41,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-15 18:23:41,005 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:23:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-15 18:23:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:23:41,020 INFO L87 Difference]: Start difference. First operand has 92 states, 91 states have (on average 3.7362637362637363) internal successors, (340), 91 states have internal predecessors, (340), 0 states have call successors, (0), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:23:41,094 INFO L93 Difference]: Finished difference Result 181 states and 677 transitions. [2022-03-15 18:23:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-15 18:23:41,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-03-15 18:23:41,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:23:41,102 INFO L225 Difference]: With dead ends: 181 [2022-03-15 18:23:41,103 INFO L226 Difference]: Without dead ends: 172 [2022-03-15 18:23:41,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 4 SyntacticMatches, 66 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-15 18:23:41,106 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:23:41,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:23:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-15 18:23:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-03-15 18:23:41,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 3.7953216374269005) internal successors, (649), 171 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:41,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 649 transitions. [2022-03-15 18:23:41,138 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 649 transitions. Word has length 21 [2022-03-15 18:23:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:23:41,138 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 649 transitions. [2022-03-15 18:23:41,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:41,139 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 649 transitions. [2022-03-15 18:23:41,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:23:41,140 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:23:41,140 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] [2022-03-15 18:23:41,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 18:23:41,141 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 18:23:41,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:23:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash 377126709, now seen corresponding path program 1 times [2022-03-15 18:23:41,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:23:41,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676281694] [2022-03-15 18:23:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:23:41,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:23:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:23:41,213 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 18:23:41,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:23:41,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676281694] [2022-03-15 18:23:41,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676281694] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:23:41,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:23:41,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:23:41,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1144529935] [2022-03-15 18:23:41,214 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:23:41,216 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:23:41,234 INFO L252 McrAutomatonBuilder]: Finished intersection with 122 states and 294 transitions. [2022-03-15 18:23:41,234 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:23:42,117 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [872#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (<= (+ ~n~0 (* (div ~x4~0 4294967296) 4294967296)) (+ ~x4~0 (* (div ~n~0 4294967296) 4294967296)))), 871#(< (mod ~x3~0 4294967296) (mod ~n~0 4294967296))] [2022-03-15 18:23:42,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 18:23:42,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:23:42,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 18:23:42,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 18:23:42,119 INFO L87 Difference]: Start difference. First operand 172 states and 649 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:42,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:23:42,297 INFO L93 Difference]: Finished difference Result 278 states and 1039 transitions. [2022-03-15 18:23:42,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 18:23:42,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 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 22 [2022-03-15 18:23:42,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:23:42,300 INFO L225 Difference]: With dead ends: 278 [2022-03-15 18:23:42,300 INFO L226 Difference]: Without dead ends: 268 [2022-03-15 18:23:42,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-15 18:23:42,301 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 18:23:42,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 18:23:42,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-03-15 18:23:42,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 224. [2022-03-15 18:23:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 3.9730941704035874) internal successors, (886), 223 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 886 transitions. [2022-03-15 18:23:42,312 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 886 transitions. Word has length 22 [2022-03-15 18:23:42,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:23:42,313 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 886 transitions. [2022-03-15 18:23:42,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:23:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 886 transitions. [2022-03-15 18:23:42,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:23:42,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:23:42,314 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] [2022-03-15 18:23:42,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 18:23:42,315 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 18:23:42,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:23:42,315 INFO L85 PathProgramCache]: Analyzing trace with hash -195813044, now seen corresponding path program 1 times [2022-03-15 18:23:42,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:23:42,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054404864] [2022-03-15 18:23:42,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:23:42,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:23:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:23:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:23:42,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:23:42,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054404864] [2022-03-15 18:23:42,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054404864] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:23:42,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811163220] [2022-03-15 18:23:42,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:23:42,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:23:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:23:42,423 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 18:23:42,424 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 18:23:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:23:42,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 18:23:42,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:23:42,775 INFO L884 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2022-03-15 18:24:02,544 WARN L228 SmtUtils]: Spent 18.16s on a formula simplification. DAG size of input: 6318 DAG size of output: 2835 (called from [L1067] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-03-15 18:24:13,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:13,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:24:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:13,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811163220] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:24:13,482 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:24:13,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-03-15 18:24:13,482 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [670598357] [2022-03-15 18:24:13,482 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:24:13,485 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:24:13,502 INFO L252 McrAutomatonBuilder]: Finished intersection with 128 states and 314 transitions. [2022-03-15 18:24:13,502 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:24:15,386 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [1738#(or (<= (mod ~n~0 4294967296) (mod ~x3~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* ~x3~0 128) 4294967296) (mod ~n~0 4294967296))), 1736#(or (not (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296))) (< (mod (* ~x3~0 128) 4294967296) (mod ~n~0 4294967296))), 1735#(< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)), 1737#(or (< (mod ~x3~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x4~0 4294967296) (mod ~n~0 4294967296)))] [2022-03-15 18:24:15,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 18:24:15,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:24:15,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 18:24:15,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:24:15,387 INFO L87 Difference]: Start difference. First operand 224 states and 886 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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 18:24:17,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-03-15 18:24:17,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:24:17,790 INFO L93 Difference]: Finished difference Result 344 states and 1268 transitions. [2022-03-15 18:24:17,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 18:24:17,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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 22 [2022-03-15 18:24:17,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:24:17,793 INFO L225 Difference]: With dead ends: 344 [2022-03-15 18:24:17,793 INFO L226 Difference]: Without dead ends: 344 [2022-03-15 18:24:17,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 121 SyntacticMatches, 21 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 18:24:17,794 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 72 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-03-15 18:24:17,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 0 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 314 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-03-15 18:24:17,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2022-03-15 18:24:17,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 280. [2022-03-15 18:24:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 3.935483870967742) internal successors, (1098), 279 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:24:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 1098 transitions. [2022-03-15 18:24:17,805 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 1098 transitions. Word has length 22 [2022-03-15 18:24:17,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:24:17,805 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 1098 transitions. [2022-03-15 18:24:17,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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 18:24:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 1098 transitions. [2022-03-15 18:24:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:24:17,807 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:24:17,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:24:17,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-15 18:24:18,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:24:18,024 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 18:24:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:24:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash 128544790, now seen corresponding path program 1 times [2022-03-15 18:24:18,027 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:24:18,027 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315970847] [2022-03-15 18:24:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:18,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:24:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:18,108 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 18:24:18,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:24:18,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315970847] [2022-03-15 18:24:18,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315970847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 18:24:18,110 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 18:24:18,110 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-15 18:24:18,110 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [268456444] [2022-03-15 18:24:18,110 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:24:18,112 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:24:18,130 INFO L252 McrAutomatonBuilder]: Finished intersection with 128 states and 314 transitions. [2022-03-15 18:24:18,130 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:24:19,524 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 6 new interpolants: [2657#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* ~x2~0 128) 4294967296) (mod ~n~0 4294967296))), 2653#(< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)), 2658#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (<= (+ ~n~0 (* (div ~x2~0 4294967296) 4294967296)) (+ ~x2~0 (* (div ~n~0 4294967296) 4294967296)))), 2656#(or (not (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))) (< (mod (* ~x2~0 128) 4294967296) (mod ~n~0 4294967296))), 2654#(< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)), 2655#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)))] [2022-03-15 18:24:19,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 18:24:19,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:24:19,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 18:24:19,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:24:19,525 INFO L87 Difference]: Start difference. First operand 280 states and 1098 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 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 18:24:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:24:19,983 INFO L93 Difference]: Finished difference Result 480 states and 1860 transitions. [2022-03-15 18:24:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 18:24:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 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 22 [2022-03-15 18:24:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:24:19,986 INFO L225 Difference]: With dead ends: 480 [2022-03-15 18:24:19,986 INFO L226 Difference]: Without dead ends: 470 [2022-03-15 18:24:19,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-03-15 18:24:19,987 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 150 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 18:24:19,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [150 Valid, 0 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 18:24:19,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2022-03-15 18:24:19,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 378. [2022-03-15 18:24:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 4.111405835543766) internal successors, (1550), 377 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:24:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 1550 transitions. [2022-03-15 18:24:20,000 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 1550 transitions. Word has length 22 [2022-03-15 18:24:20,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:24:20,000 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 1550 transitions. [2022-03-15 18:24:20,000 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 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 18:24:20,000 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 1550 transitions. [2022-03-15 18:24:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-03-15 18:24:20,001 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:24:20,001 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] [2022-03-15 18:24:20,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-15 18:24:20,002 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 18:24:20,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:24:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2108215454, now seen corresponding path program 1 times [2022-03-15 18:24:20,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:24:20,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509492010] [2022-03-15 18:24:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:20,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:24:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:20,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:24:20,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509492010] [2022-03-15 18:24:20,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509492010] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:24:20,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334237986] [2022-03-15 18:24:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:24:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:24:20,040 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 18:24:20,041 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 18:24:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:20,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-15 18:24:20,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 18:24:20,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:20,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 18:24:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:20,218 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334237986] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 18:24:20,218 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 18:24:20,219 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-03-15 18:24:20,219 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [891197284] [2022-03-15 18:24:20,219 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:24:20,221 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:24:20,237 INFO L252 McrAutomatonBuilder]: Finished intersection with 122 states and 294 transitions. [2022-03-15 18:24:20,238 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 18:24:21,669 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4031#(< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)), 4033#(or (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)) (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296))), 4034#(or (< (mod ~x2~0 4294967296) (mod ~n~0 4294967296)) (< (mod (* ~x1~0 128) 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296)))), 4032#(or (< (mod (* ~x1~0 128) 4294967296) (mod ~n~0 4294967296)) (not (< (mod ~x1~0 4294967296) (mod ~n~0 4294967296))))] [2022-03-15 18:24:21,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-15 18:24:21,670 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 18:24:21,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-15 18:24:21,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-03-15 18:24:21,670 INFO L87 Difference]: Start difference. First operand 378 states and 1550 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:24:22,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 18:24:22,031 INFO L93 Difference]: Finished difference Result 706 states and 2675 transitions. [2022-03-15 18:24:22,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-15 18:24:22,031 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 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 22 [2022-03-15 18:24:22,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 18:24:22,035 INFO L225 Difference]: With dead ends: 706 [2022-03-15 18:24:22,035 INFO L226 Difference]: Without dead ends: 706 [2022-03-15 18:24:22,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 126 SyntacticMatches, 10 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2022-03-15 18:24:22,036 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 85 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-15 18:24:22,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 0 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-15 18:24:22,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2022-03-15 18:24:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 496. [2022-03-15 18:24:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 4.125252525252526) internal successors, (2042), 495 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:24:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 2042 transitions. [2022-03-15 18:24:22,050 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 2042 transitions. Word has length 22 [2022-03-15 18:24:22,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 18:24:22,050 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 2042 transitions. [2022-03-15 18:24:22,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 7 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 18:24:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 2042 transitions. [2022-03-15 18:24:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-03-15 18:24:22,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 18:24:22,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 18:24:22,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-15 18:24:22,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:24:22,271 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 18:24:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 18:24:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1800005367, now seen corresponding path program 1 times [2022-03-15 18:24:22,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 18:24:22,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600293919] [2022-03-15 18:24:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:22,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 18:24:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 18:24:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 18:24:22,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 18:24:22,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600293919] [2022-03-15 18:24:22,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600293919] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 18:24:22,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065746215] [2022-03-15 18:24:22,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 18:24:22,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 18:24:22,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 18:24:22,530 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 18:24:22,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Received shutdown request... [2022-03-15 18:38:16,700 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 18:38:16,700 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-15 18:38:17,710 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 [2022-03-15 18:38:17,905 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2022-03-15 18:38:17,913 WARN L317 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-03-15 18:38:17,913 INFO L191 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-03-15 18:38:17,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2022-03-15 18:38:17,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1020650164] [2022-03-15 18:38:17,914 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 18:38:17,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2022-03-15 18:38:17,916 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 18:38:17,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 18:38:17,918 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:50) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:941) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.intersectNwa(McrAutomatonBuilder.java:251) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.buildMcrAutomaton(McrAutomatonBuilder.java:244) at de.uni_freiburg.informatik.ultimate.lib.mcr.McrAutomatonBuilder.buildInterpolantAutomaton(McrAutomatonBuilder.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:47) ... 23 more [2022-03-15 18:38:17,922 INFO L158 Benchmark]: Toolchain (without parser) took 883363.24ms. Allocated memory was 229.6MB in the beginning and 477.1MB in the end (delta: 247.5MB). Free memory was 179.6MB in the beginning and 401.7MB in the end (delta: -222.1MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,922 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 229.6MB. Free memory is still 195.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 18:38:17,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.74ms. Allocated memory is still 229.6MB. Free memory was 179.3MB in the beginning and 205.3MB in the end (delta: -25.9MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.20ms. Allocated memory is still 229.6MB. Free memory was 205.3MB in the beginning and 202.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,922 INFO L158 Benchmark]: Boogie Preprocessor took 34.16ms. Allocated memory is still 229.6MB. Free memory was 202.9MB in the beginning and 201.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,923 INFO L158 Benchmark]: RCFGBuilder took 394.17ms. Allocated memory is still 229.6MB. Free memory was 201.6MB in the beginning and 186.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,923 INFO L158 Benchmark]: TraceAbstraction took 882648.22ms. Allocated memory was 229.6MB in the beginning and 477.1MB in the end (delta: 247.5MB). Free memory was 186.4MB in the beginning and 401.7MB in the end (delta: -215.3MB). Peak memory consumption was 33.2MB. Max. memory is 8.0GB. [2022-03-15 18:38:17,924 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 229.6MB. Free memory is still 195.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 242.74ms. Allocated memory is still 229.6MB. Free memory was 179.3MB in the beginning and 205.3MB in the end (delta: -25.9MB). Peak memory consumption was 11.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.20ms. Allocated memory is still 229.6MB. Free memory was 205.3MB in the beginning and 202.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.16ms. Allocated memory is still 229.6MB. Free memory was 202.9MB in the beginning and 201.6MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 394.17ms. Allocated memory is still 229.6MB. Free memory was 201.6MB in the beginning and 186.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 882648.22ms. Allocated memory was 229.6MB in the beginning and 477.1MB in the end (delta: 247.5MB). Free memory was 186.4MB in the beginning and 401.7MB in the end (delta: -215.3MB). Peak memory consumption was 33.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 152 PlacesBefore, 39 PlacesAfterwards, 149 TransitionsBefore, 30 TransitionsAfterwards, 3312 CoEnabledTransitionPairs, 6 FixpointIterations, 62 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 8 ConcurrentYvCompositions, 6 ChoiceCompositions, 127 TotalNumberOfCompositions, 3131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3131, positive: 3131, positive conditional: 0, positive unconditional: 3131, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1800, positive: 1800, positive conditional: 0, positive unconditional: 1800, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3131, positive: 1331, positive conditional: 0, positive unconditional: 1331, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1800, unknown conditional: 0, unknown unconditional: 1800] , Statistics on independence cache: Total cache size (in pairs): 62, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - ExceptionOrErrorResult: RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: RuntimeException: de.uni_freiburg.informatik.ultimate.automata.AutomataOperationCanceledException: Timeout or canceled by user.: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpAbStrategyModuleMcr.buildInterpolantAutomaton(IpAbStrategyModuleMcr.java:50) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown