/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 13:37:39,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 13:37:39,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 13:37:39,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 13:37:39,447 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-02-18 13:37:39,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 13:37:39,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 13:37:39,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 13:37:39,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 13:37:39,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 13:37:39,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 13:37:39,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 13:37:39,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 13:37:39,489 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 13:37:39,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 13:37:39,489 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 13:37:39,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 13:37:39,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 13:37:39,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:37:39,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 13:37:39,492 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 13:37:39,492 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 13:37:39,492 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 13:37:39,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 13:37:39,492 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 13:37:39,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 13:37:39,493 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 13:37:39,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 13:37:39,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 13:37:39,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 13:37:39,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-18 13:37:39,754 INFO L275 PluginConnector]: CDTParser initialized [2022-02-18 13:37:39,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:37:39,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cadadfe7/bb1a8f7ccca84e5982b375e7ff23dd84/FLAGd6d8167c4 [2022-02-18 13:37:40,312 INFO L306 CDTParser]: Found 1 translation units. [2022-02-18 13:37:40,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:37:40,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cadadfe7/bb1a8f7ccca84e5982b375e7ff23dd84/FLAGd6d8167c4 [2022-02-18 13:37:40,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cadadfe7/bb1a8f7ccca84e5982b375e7ff23dd84 [2022-02-18 13:37:40,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 13:37:40,682 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-18 13:37:40,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-18 13:37:40,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-18 13:37:40,686 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-18 13:37:40,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:40" (1/1) ... [2022-02-18 13:37:40,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5897c1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:40, skipping insertion in model container [2022-02-18 13:37:40,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 01:37:40" (1/1) ... [2022-02-18 13:37:40,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-18 13:37:40,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-18 13:37:40,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-18 13:37:41,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:37:41,053 INFO L203 MainTranslator]: Completed pre-run [2022-02-18 13:37:41,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-02-18 13:37:41,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-18 13:37:41,124 INFO L208 MainTranslator]: Completed translation [2022-02-18 13:37:41,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41 WrapperNode [2022-02-18 13:37:41,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-18 13:37:41,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 13:37:41,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 13:37:41,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 13:37:41,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,184 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-02-18 13:37:41,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 13:37:41,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 13:37:41,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 13:37:41,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 13:37:41,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 13:37:41,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 13:37:41,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 13:37:41,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 13:37:41,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (1/1) ... [2022-02-18 13:37:41,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 13:37:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 13:37:41,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 13:37:41,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 13:37:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-02-18 13:37:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-02-18 13:37:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-02-18 13:37:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-02-18 13:37:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-02-18 13:37:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-02-18 13:37:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-18 13:37:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-18 13:37:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 13:37:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 13:37:41,313 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 13:37:41,406 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 13:37:41,407 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 13:37:41,618 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 13:37:41,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 13:37:41,625 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 13:37:41,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:41 BoogieIcfgContainer [2022-02-18 13:37:41,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 13:37:41,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 13:37:41,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 13:37:41,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 13:37:41,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 01:37:40" (1/3) ... [2022-02-18 13:37:41,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:41, skipping insertion in model container [2022-02-18 13:37:41,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 01:37:41" (2/3) ... [2022-02-18 13:37:41,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7134efb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 01:37:41, skipping insertion in model container [2022-02-18 13:37:41,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 01:37:41" (3/3) ... [2022-02-18 13:37:41,635 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-02-18 13:37:41,639 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 13:37:41,640 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 13:37:41,640 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 13:37:41,640 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 13:37:41,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,681 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,681 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,681 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,682 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,682 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,682 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,683 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,684 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,685 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,685 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,685 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,685 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,685 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,686 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,686 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,686 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,686 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,686 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,687 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,687 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,687 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,687 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,688 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,688 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,688 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,688 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,692 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,692 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,692 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,695 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,695 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,695 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,695 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,696 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,696 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,696 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,697 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-18 13:37:41,697 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-02-18 13:37:41,737 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 13:37:41,743 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 13:37:41,744 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 13:37:41,754 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 92 transitions, 199 flow [2022-02-18 13:37:42,060 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:42,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-02-18 13:37:42,126 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:42,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:42,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:42,135 INFO L85 PathProgramCache]: Analyzing trace with hash -669003802, now seen corresponding path program 1 times [2022-02-18 13:37:42,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:42,147 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950777991] [2022-02-18 13:37:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:42,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:42,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:42,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:42,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950777991] [2022-02-18 13:37:42,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950777991] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:42,742 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:42,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:42,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67841843] [2022-02-18 13:37:42,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:42,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:42,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:42,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:42,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:42,806 INFO L87 Difference]: Start difference. First operand has 6591 states, 6590 states have (on average 3.504855842185129) internal successors, (23097), 6590 states have internal predecessors, (23097), 0 states have call successors, (0), 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 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:43,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:43,189 INFO L93 Difference]: Finished difference Result 12688 states and 43177 transitions. [2022-02-18 13:37:43,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:43,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-02-18 13:37:43,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:43,301 INFO L225 Difference]: With dead ends: 12688 [2022-02-18 13:37:43,302 INFO L226 Difference]: Without dead ends: 8696 [2022-02-18 13:37:43,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-18 13:37:43,355 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 116 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:43,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 540 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:37:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8696 states. [2022-02-18 13:37:43,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8696 to 7373. [2022-02-18 13:37:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7373 states, 7372 states have (on average 3.399484536082474) internal successors, (25061), 7372 states have internal predecessors, (25061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:43,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7373 states to 7373 states and 25061 transitions. [2022-02-18 13:37:43,793 INFO L78 Accepts]: Start accepts. Automaton has 7373 states and 25061 transitions. Word has length 55 [2022-02-18 13:37:43,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:43,795 INFO L470 AbstractCegarLoop]: Abstraction has 7373 states and 25061 transitions. [2022-02-18 13:37:43,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:43,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7373 states and 25061 transitions. [2022-02-18 13:37:43,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-02-18 13:37:43,818 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:43,819 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:43,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 13:37:43,819 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:43,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:43,821 INFO L85 PathProgramCache]: Analyzing trace with hash 903878887, now seen corresponding path program 1 times [2022-02-18 13:37:43,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:43,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610800702] [2022-02-18 13:37:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:44,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:44,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610800702] [2022-02-18 13:37:44,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610800702] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:44,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:44,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:44,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656791610] [2022-02-18 13:37:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:44,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:44,056 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:44,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:44,057 INFO L87 Difference]: Start difference. First operand 7373 states and 25061 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:44,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:44,437 INFO L93 Difference]: Finished difference Result 9927 states and 33287 transitions. [2022-02-18 13:37:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:37:44,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-02-18 13:37:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:44,505 INFO L225 Difference]: With dead ends: 9927 [2022-02-18 13:37:44,506 INFO L226 Difference]: Without dead ends: 7667 [2022-02-18 13:37:44,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:44,509 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 233 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:44,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 546 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:37:44,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7667 states. [2022-02-18 13:37:44,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7667 to 6343. [2022-02-18 13:37:44,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6343 states, 6342 states have (on average 3.370072532324188) internal successors, (21373), 6342 states have internal predecessors, (21373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:44,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6343 states to 6343 states and 21373 transitions. [2022-02-18 13:37:44,833 INFO L78 Accepts]: Start accepts. Automaton has 6343 states and 21373 transitions. Word has length 57 [2022-02-18 13:37:44,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:44,834 INFO L470 AbstractCegarLoop]: Abstraction has 6343 states and 21373 transitions. [2022-02-18 13:37:44,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:44,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6343 states and 21373 transitions. [2022-02-18 13:37:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-02-18 13:37:44,849 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:44,849 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:44,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 13:37:44,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:44,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:44,850 INFO L85 PathProgramCache]: Analyzing trace with hash 492387899, now seen corresponding path program 1 times [2022-02-18 13:37:44,850 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:44,851 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485373951] [2022-02-18 13:37:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:44,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:44,996 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:44,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485373951] [2022-02-18 13:37:44,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485373951] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:44,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:44,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:44,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100168684] [2022-02-18 13:37:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:44,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:44,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:44,999 INFO L87 Difference]: Start difference. First operand 6343 states and 21373 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:45,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:45,280 INFO L93 Difference]: Finished difference Result 8636 states and 28763 transitions. [2022-02-18 13:37:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:37:45,281 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2022-02-18 13:37:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:45,312 INFO L225 Difference]: With dead ends: 8636 [2022-02-18 13:37:45,312 INFO L226 Difference]: Without dead ends: 6981 [2022-02-18 13:37:45,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:45,313 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 158 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:45,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 632 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:37:45,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6981 states. [2022-02-18 13:37:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6981 to 5422. [2022-02-18 13:37:45,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5422 states, 5421 states have (on average 3.363586054233536) internal successors, (18234), 5421 states have internal predecessors, (18234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:45,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5422 states to 5422 states and 18234 transitions. [2022-02-18 13:37:45,568 INFO L78 Accepts]: Start accepts. Automaton has 5422 states and 18234 transitions. Word has length 58 [2022-02-18 13:37:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:45,569 INFO L470 AbstractCegarLoop]: Abstraction has 5422 states and 18234 transitions. [2022-02-18 13:37:45,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 5422 states and 18234 transitions. [2022-02-18 13:37:45,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-02-18 13:37:45,583 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:45,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:45,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-18 13:37:45,586 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:45,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:45,587 INFO L85 PathProgramCache]: Analyzing trace with hash -358578490, now seen corresponding path program 1 times [2022-02-18 13:37:45,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:45,587 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476139716] [2022-02-18 13:37:45,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:45,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:45,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:45,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476139716] [2022-02-18 13:37:45,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476139716] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:45,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:45,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:45,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751511488] [2022-02-18 13:37:45,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:45,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:45,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:45,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:45,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:45,693 INFO L87 Difference]: Start difference. First operand 5422 states and 18234 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:45,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:45,926 INFO L93 Difference]: Finished difference Result 7844 states and 25979 transitions. [2022-02-18 13:37:45,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:37:45,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-02-18 13:37:45,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:45,957 INFO L225 Difference]: With dead ends: 7844 [2022-02-18 13:37:45,961 INFO L226 Difference]: Without dead ends: 6569 [2022-02-18 13:37:45,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:45,963 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 169 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:45,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 650 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-18 13:37:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6569 states. [2022-02-18 13:37:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6569 to 4827. [2022-02-18 13:37:46,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4827 states, 4826 states have (on average 3.3346456692913384) internal successors, (16093), 4826 states have internal predecessors, (16093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4827 states to 4827 states and 16093 transitions. [2022-02-18 13:37:46,158 INFO L78 Accepts]: Start accepts. Automaton has 4827 states and 16093 transitions. Word has length 59 [2022-02-18 13:37:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:46,158 INFO L470 AbstractCegarLoop]: Abstraction has 4827 states and 16093 transitions. [2022-02-18 13:37:46,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4827 states and 16093 transitions. [2022-02-18 13:37:46,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-02-18 13:37:46,175 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:46,176 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:46,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-18 13:37:46,176 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:46,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:46,177 INFO L85 PathProgramCache]: Analyzing trace with hash 309806588, now seen corresponding path program 1 times [2022-02-18 13:37:46,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:46,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220605793] [2022-02-18 13:37:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:46,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:46,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:46,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220605793] [2022-02-18 13:37:46,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220605793] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:46,355 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:46,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:46,356 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445686723] [2022-02-18 13:37:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:46,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:46,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:46,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:46,359 INFO L87 Difference]: Start difference. First operand 4827 states and 16093 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:46,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:46,548 INFO L93 Difference]: Finished difference Result 6916 states and 22874 transitions. [2022-02-18 13:37:46,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-18 13:37:46,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-02-18 13:37:46,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:46,573 INFO L225 Difference]: With dead ends: 6916 [2022-02-18 13:37:46,573 INFO L226 Difference]: Without dead ends: 6216 [2022-02-18 13:37:46,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:46,575 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 173 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:46,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 495 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6216 states. [2022-02-18 13:37:46,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6216 to 4547. [2022-02-18 13:37:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4547 states, 4546 states have (on average 3.3213814342278924) internal successors, (15099), 4546 states have internal predecessors, (15099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:46,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 15099 transitions. [2022-02-18 13:37:46,735 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 15099 transitions. Word has length 60 [2022-02-18 13:37:46,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:46,736 INFO L470 AbstractCegarLoop]: Abstraction has 4547 states and 15099 transitions. [2022-02-18 13:37:46,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 15099 transitions. [2022-02-18 13:37:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-02-18 13:37:46,748 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:46,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:46,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-18 13:37:46,748 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:46,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:46,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1364284125, now seen corresponding path program 1 times [2022-02-18 13:37:46,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:46,750 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384503732] [2022-02-18 13:37:46,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:46,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:46,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:46,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384503732] [2022-02-18 13:37:46,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384503732] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:46,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:46,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:46,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285668814] [2022-02-18 13:37:46,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:46,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:46,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:46,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:46,869 INFO L87 Difference]: Start difference. First operand 4547 states and 15099 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:47,014 INFO L93 Difference]: Finished difference Result 6307 states and 20747 transitions. [2022-02-18 13:37:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 13:37:47,015 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2022-02-18 13:37:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:47,026 INFO L225 Difference]: With dead ends: 6307 [2022-02-18 13:37:47,026 INFO L226 Difference]: Without dead ends: 3077 [2022-02-18 13:37:47,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-02-18 13:37:47,029 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 159 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:47,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 446 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:47,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-02-18 13:37:47,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 3077. [2022-02-18 13:37:47,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 3076 states have (on average 3.227243172951886) internal successors, (9927), 3076 states have internal predecessors, (9927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 9927 transitions. [2022-02-18 13:37:47,130 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 9927 transitions. Word has length 62 [2022-02-18 13:37:47,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:47,131 INFO L470 AbstractCegarLoop]: Abstraction has 3077 states and 9927 transitions. [2022-02-18 13:37:47,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 9927 transitions. [2022-02-18 13:37:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-18 13:37:47,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:47,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:47,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-18 13:37:47,138 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash 2069091659, now seen corresponding path program 1 times [2022-02-18 13:37:47,140 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:47,140 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265083559] [2022-02-18 13:37:47,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:47,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:47,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:47,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265083559] [2022-02-18 13:37:47,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265083559] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:47,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:47,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-18 13:37:47,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045144339] [2022-02-18 13:37:47,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:47,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-18 13:37:47,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:47,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-18 13:37:47,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-18 13:37:47,258 INFO L87 Difference]: Start difference. First operand 3077 states and 9927 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:47,359 INFO L93 Difference]: Finished difference Result 3973 states and 12664 transitions. [2022-02-18 13:37:47,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:47,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2022-02-18 13:37:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:47,369 INFO L225 Difference]: With dead ends: 3973 [2022-02-18 13:37:47,370 INFO L226 Difference]: Without dead ends: 2783 [2022-02-18 13:37:47,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-18 13:37:47,373 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 132 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:47,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 353 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:47,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2022-02-18 13:37:47,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2022-02-18 13:37:47,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2782 states have (on average 3.178289000718907) internal successors, (8842), 2782 states have internal predecessors, (8842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 8842 transitions. [2022-02-18 13:37:47,441 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 8842 transitions. Word has length 63 [2022-02-18 13:37:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:47,441 INFO L470 AbstractCegarLoop]: Abstraction has 2783 states and 8842 transitions. [2022-02-18 13:37:47,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 8842 transitions. [2022-02-18 13:37:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-02-18 13:37:47,448 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:47,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:47,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-18 13:37:47,449 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:47,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:47,450 INFO L85 PathProgramCache]: Analyzing trace with hash 2012999170, now seen corresponding path program 1 times [2022-02-18 13:37:47,450 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:47,450 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515837287] [2022-02-18 13:37:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:47,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:47,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:47,558 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:47,558 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515837287] [2022-02-18 13:37:47,558 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515837287] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:47,559 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:47,559 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:47,559 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836902240] [2022-02-18 13:37:47,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:47,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:47,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:47,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:47,560 INFO L87 Difference]: Start difference. First operand 2783 states and 8842 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2022-02-18 13:37:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:47,671 INFO L93 Difference]: Finished difference Result 3038 states and 9429 transitions. [2022-02-18 13:37:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-18 13:37:47,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 64 [2022-02-18 13:37:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:47,678 INFO L225 Difference]: With dead ends: 3038 [2022-02-18 13:37:47,679 INFO L226 Difference]: Without dead ends: 2048 [2022-02-18 13:37:47,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-02-18 13:37:47,679 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 199 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:47,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 405 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2022-02-18 13:37:47,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2022-02-18 13:37:47,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 2047 states have (on average 3.0542256961406937) internal successors, (6252), 2047 states have internal predecessors, (6252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 6252 transitions. [2022-02-18 13:37:47,725 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 6252 transitions. Word has length 64 [2022-02-18 13:37:47,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:47,725 INFO L470 AbstractCegarLoop]: Abstraction has 2048 states and 6252 transitions. [2022-02-18 13:37:47,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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) [2022-02-18 13:37:47,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 6252 transitions. [2022-02-18 13:37:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-02-18 13:37:47,731 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:47,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:47,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-18 13:37:47,732 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:47,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:47,732 INFO L85 PathProgramCache]: Analyzing trace with hash -140050297, now seen corresponding path program 1 times [2022-02-18 13:37:47,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:47,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349220873] [2022-02-18 13:37:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:47,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:47,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:47,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:47,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349220873] [2022-02-18 13:37:47,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349220873] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:47,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:47,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:37:47,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239452775] [2022-02-18 13:37:47,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:47,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:37:47,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:47,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:37:47,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:37:47,830 INFO L87 Difference]: Start difference. First operand 2048 states and 6252 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:47,951 INFO L93 Difference]: Finished difference Result 1769 states and 5268 transitions. [2022-02-18 13:37:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-18 13:37:47,952 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-02-18 13:37:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:47,955 INFO L225 Difference]: With dead ends: 1769 [2022-02-18 13:37:47,955 INFO L226 Difference]: Without dead ends: 957 [2022-02-18 13:37:47,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-02-18 13:37:47,956 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 218 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:47,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 369 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:47,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2022-02-18 13:37:47,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 957. [2022-02-18 13:37:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 2.9006276150627617) internal successors, (2773), 956 states have internal predecessors, (2773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 2773 transitions. [2022-02-18 13:37:47,975 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 2773 transitions. Word has length 65 [2022-02-18 13:37:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:47,976 INFO L470 AbstractCegarLoop]: Abstraction has 957 states and 2773 transitions. [2022-02-18 13:37:47,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 2773 transitions. [2022-02-18 13:37:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-18 13:37:47,978 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:47,978 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:47,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-18 13:37:47,978 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:47,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1185405902, now seen corresponding path program 1 times [2022-02-18 13:37:47,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:47,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139436521] [2022-02-18 13:37:47,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:47,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:48,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:48,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139436521] [2022-02-18 13:37:48,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139436521] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:48,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:48,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-18 13:37:48,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112554259] [2022-02-18 13:37:48,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:48,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-18 13:37:48,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:48,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-18 13:37:48,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-18 13:37:48,080 INFO L87 Difference]: Start difference. First operand 957 states and 2773 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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) [2022-02-18 13:37:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:48,165 INFO L93 Difference]: Finished difference Result 1521 states and 4457 transitions. [2022-02-18 13:37:48,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 13:37:48,165 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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 67 [2022-02-18 13:37:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:48,168 INFO L225 Difference]: With dead ends: 1521 [2022-02-18 13:37:48,168 INFO L226 Difference]: Without dead ends: 889 [2022-02-18 13:37:48,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-02-18 13:37:48,169 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 102 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:48,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 601 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-02-18 13:37:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2022-02-18 13:37:48,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 889 states, 888 states have (on average 2.880630630630631) internal successors, (2558), 888 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 2558 transitions. [2022-02-18 13:37:48,189 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 2558 transitions. Word has length 67 [2022-02-18 13:37:48,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:48,189 INFO L470 AbstractCegarLoop]: Abstraction has 889 states and 2558 transitions. [2022-02-18 13:37:48,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 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) [2022-02-18 13:37:48,190 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 2558 transitions. [2022-02-18 13:37:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-02-18 13:37:48,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-18 13:37:48,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:48,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-18 13:37:48,192 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 13:37:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 13:37:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash 260970208, now seen corresponding path program 2 times [2022-02-18 13:37:48,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 13:37:48,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706356425] [2022-02-18 13:37:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 13:37:48,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 13:37:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 13:37:48,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 13:37:48,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 13:37:48,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706356425] [2022-02-18 13:37:48,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706356425] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 13:37:48,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 13:37:48,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-18 13:37:48,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658581909] [2022-02-18 13:37:48,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 13:37:48,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-18 13:37:48,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 13:37:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-18 13:37:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-18 13:37:48,275 INFO L87 Difference]: Start difference. First operand 889 states and 2558 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2022-02-18 13:37:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-18 13:37:48,340 INFO L93 Difference]: Finished difference Result 835 states and 2396 transitions. [2022-02-18 13:37:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-18 13:37:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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 67 [2022-02-18 13:37:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-18 13:37:48,340 INFO L225 Difference]: With dead ends: 835 [2022-02-18 13:37:48,340 INFO L226 Difference]: Without dead ends: 0 [2022-02-18 13:37:48,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-02-18 13:37:48,341 INFO L933 BasicCegarLoop]: 81 mSDtfsCounter, 78 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-18 13:37:48,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 346 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-18 13:37:48,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-18 13:37:48,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-18 13:37:48,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 13:37:48,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-18 13:37:48,342 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-02-18 13:37:48,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-18 13:37:48,343 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-18 13:37:48,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 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) [2022-02-18 13:37:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-18 13:37:48,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-18 13:37:48,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-02-18 13:37:48,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-18 13:37:48,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-18 13:37:48,346 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-18 13:37:48,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-18 13:37:48,350 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-18 13:37:48,352 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 13:37:48,352 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 13:37:48,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 01:37:48 BasicIcfg [2022-02-18 13:37:48,355 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 13:37:48,355 INFO L158 Benchmark]: Toolchain (without parser) took 7673.64ms. Allocated memory was 180.4MB in the beginning and 655.4MB in the end (delta: 475.0MB). Free memory was 122.1MB in the beginning and 210.6MB in the end (delta: -88.5MB). Peak memory consumption was 387.4MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,356 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 13:37:48,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.64ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 121.8MB in the beginning and 187.2MB in the end (delta: -65.4MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.40ms. Allocated memory is still 226.5MB. Free memory was 187.2MB in the beginning and 185.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,356 INFO L158 Benchmark]: Boogie Preprocessor took 34.99ms. Allocated memory is still 226.5MB. Free memory was 185.6MB in the beginning and 184.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,357 INFO L158 Benchmark]: RCFGBuilder took 405.80ms. Allocated memory is still 226.5MB. Free memory was 184.1MB in the beginning and 169.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,357 INFO L158 Benchmark]: TraceAbstraction took 6726.19ms. Allocated memory was 226.5MB in the beginning and 655.4MB in the end (delta: 428.9MB). Free memory was 169.4MB in the beginning and 210.6MB in the end (delta: -41.2MB). Peak memory consumption was 388.8MB. Max. memory is 8.0GB. [2022-02-18 13:37:48,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 140.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 440.64ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 121.8MB in the beginning and 187.2MB in the end (delta: -65.4MB). Peak memory consumption was 7.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.40ms. Allocated memory is still 226.5MB. Free memory was 187.2MB in the beginning and 185.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.99ms. Allocated memory is still 226.5MB. Free memory was 185.6MB in the beginning and 184.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 405.80ms. Allocated memory is still 226.5MB. Free memory was 184.1MB in the beginning and 169.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 6726.19ms. Allocated memory was 226.5MB in the beginning and 655.4MB in the end (delta: 428.9MB). Free memory was 169.4MB in the beginning and 210.6MB in the end (delta: -41.2MB). Peak memory consumption was 388.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 115 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1737 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1737 mSDsluCounter, 5383 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4281 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 667 IncrementalHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 1221 mSDtfsCounter, 667 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7373occurred in iteration=1, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 7617 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 677 NumberOfCodeBlocks, 677 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 666 ConstructedInterpolants, 0 QuantifiedInterpolants, 3160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-18 13:37:48,392 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...