/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/mix030_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-12 16:55:02,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-12 16:55:02,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-12 16:55:02,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-12 16:55:02,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-12 16:55:02,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-12 16:55:02,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-12 16:55:02,190 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 [2021-08-12 16:55:02,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-12 16:55:02,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-12 16:55:02,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-12 16:55:02,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-12 16:55:02,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-12 16:55:02,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-12 16:55:02,237 INFO L138 SettingsManager]: * Use SBE=true [2021-08-12 16:55:02,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-12 16:55:02,237 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-12 16:55:02,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-12 16:55:02,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-12 16:55:02,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-12 16:55:02,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 16:55:02,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-12 16:55:02,240 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-12 16:55:02,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-12 16:55:02,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-12 16:55:02,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-12 16:55:02,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-12 16:55:02,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-12 16:55:02,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-12 16:55:02,606 INFO L275 PluginConnector]: CDTParser initialized [2021-08-12 16:55:02,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-08-12 16:55:02,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68007812f/3edada26db224477b5ff7787f28faf7c/FLAGe2fe473f6 [2021-08-12 16:55:03,215 INFO L306 CDTParser]: Found 1 translation units. [2021-08-12 16:55:03,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i [2021-08-12 16:55:03,244 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68007812f/3edada26db224477b5ff7787f28faf7c/FLAGe2fe473f6 [2021-08-12 16:55:03,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68007812f/3edada26db224477b5ff7787f28faf7c [2021-08-12 16:55:03,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-12 16:55:03,683 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-12 16:55:03,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-12 16:55:03,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-12 16:55:03,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-12 16:55:03,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 04:55:03" (1/1) ... [2021-08-12 16:55:03,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442352e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:03, skipping insertion in model container [2021-08-12 16:55:03,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.08 04:55:03" (1/1) ... [2021-08-12 16:55:03,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-12 16:55:03,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-12 16:55:03,913 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i[948,961] [2021-08-12 16:55:04,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 16:55:04,136 INFO L203 MainTranslator]: Completed pre-run [2021-08-12 16:55:04,143 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix030_rmo.opt.i[948,961] [2021-08-12 16:55:04,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-12 16:55:04,293 INFO L208 MainTranslator]: Completed translation [2021-08-12 16:55:04,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04 WrapperNode [2021-08-12 16:55:04,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-12 16:55:04,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-12 16:55:04,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-12 16:55:04,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-12 16:55:04,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-12 16:55:04,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-12 16:55:04,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-12 16:55:04,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-12 16:55:04,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... [2021-08-12 16:55:04,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-12 16:55:04,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-12 16:55:04,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-12 16:55:04,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-12 16:55:04,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-12 16:55:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-12 16:55:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-12 16:55:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-12 16:55:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-12 16:55:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-12 16:55:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-12 16:55:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-12 16:55:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-12 16:55:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-12 16:55:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-12 16:55:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-12 16:55:04,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-12 16:55:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-12 16:55:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-12 16:55:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-12 16:55:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-12 16:55:04,581 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-12 16:55:06,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-12 16:55:06,242 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-08-12 16:55:06,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 04:55:06 BoogieIcfgContainer [2021-08-12 16:55:06,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-12 16:55:06,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-12 16:55:06,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-12 16:55:06,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-12 16:55:06,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.08 04:55:03" (1/3) ... [2021-08-12 16:55:06,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b71f1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 04:55:06, skipping insertion in model container [2021-08-12 16:55:06,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.08 04:55:04" (2/3) ... [2021-08-12 16:55:06,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b71f1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.08 04:55:06, skipping insertion in model container [2021-08-12 16:55:06,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.08 04:55:06" (3/3) ... [2021-08-12 16:55:06,250 INFO L111 eAbstractionObserver]: Analyzing ICFG mix030_rmo.opt.i [2021-08-12 16:55:06,256 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-12 16:55:06,256 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-12 16:55:06,257 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,286 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,288 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,289 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,290 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,292 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,293 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,294 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,295 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,296 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,297 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,298 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,299 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,300 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,301 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,305 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,307 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,307 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,307 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,310 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,310 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,312 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,313 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-12 16:55:06,313 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-12 16:55:06,331 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-12 16:55:06,348 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-12 16:55:06,348 INFO L379 AbstractCegarLoop]: Hoare is true [2021-08-12 16:55:06,349 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-12 16:55:06,349 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-12 16:55:06,349 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-12 16:55:06,349 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-12 16:55:06,349 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-12 16:55:06,349 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-12 16:55:06,359 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 127 transitions, 274 flow [2021-08-12 16:55:40,745 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 135556 states, 135552 states have (on average 4.513168378186969) internal successors, (611769), 135555 states have internal predecessors, (611769), 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) [2021-08-12 16:55:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 135556 states, 135552 states have (on average 4.513168378186969) internal successors, (611769), 135555 states have internal predecessors, (611769), 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) [2021-08-12 16:55:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-12 16:55:41,136 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:55:41,137 INFO L550 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] [2021-08-12 16:55:41,137 INFO L430 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:55:41,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:55:41,144 INFO L82 PathProgramCache]: Analyzing trace with hash -386527450, now seen corresponding path program 1 times [2021-08-12 16:55:41,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:55:41,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454676809] [2021-08-12 16:55:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:55:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:55:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:55:41,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:55:41,391 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454676809] [2021-08-12 16:55:41,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454676809] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:55:41,392 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:55:41,392 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-12 16:55:41,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682787661] [2021-08-12 16:55:41,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-12 16:55:41,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:55:41,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-12 16:55:41,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 16:55:41,581 INFO L87 Difference]: Start difference. First operand has 135556 states, 135552 states have (on average 4.513168378186969) internal successors, (611769), 135555 states have internal predecessors, (611769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 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) [2021-08-12 16:55:45,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:55:45,496 INFO L93 Difference]: Finished difference Result 216196 states and 984409 transitions. [2021-08-12 16:55:45,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-12 16:55:45,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 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 [2021-08-12 16:55:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:55:46,631 INFO L225 Difference]: With dead ends: 216196 [2021-08-12 16:55:46,632 INFO L226 Difference]: Without dead ends: 64100 [2021-08-12 16:55:46,791 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-12 16:55:47,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64100 states. [2021-08-12 16:55:49,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64100 to 64100. [2021-08-12 16:55:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64100 states, 64099 states have (on average 4.374561225604143) internal successors, (280405), 64099 states have internal predecessors, (280405), 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) [2021-08-12 16:55:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64100 states to 64100 states and 280405 transitions. [2021-08-12 16:55:50,322 INFO L78 Accepts]: Start accepts. Automaton has 64100 states and 280405 transitions. Word has length 59 [2021-08-12 16:55:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:55:50,324 INFO L482 AbstractCegarLoop]: Abstraction has 64100 states and 280405 transitions. [2021-08-12 16:55:50,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 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) [2021-08-12 16:55:50,325 INFO L276 IsEmpty]: Start isEmpty. Operand 64100 states and 280405 transitions. [2021-08-12 16:55:50,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-08-12 16:55:50,386 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:55:50,386 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:55:50,387 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-12 16:55:50,387 INFO L430 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:55:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:55:50,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1061660364, now seen corresponding path program 1 times [2021-08-12 16:55:50,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:55:50,391 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934284174] [2021-08-12 16:55:50,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:55:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:55:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:55:50,935 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:55:50,935 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934284174] [2021-08-12 16:55:50,935 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934284174] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:55:50,936 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:55:50,936 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:55:50,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369436491] [2021-08-12 16:55:50,937 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:55:50,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:55:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:55:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:55:50,939 INFO L87 Difference]: Start difference. First operand 64100 states and 280405 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-08-12 16:55:52,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:55:52,846 INFO L93 Difference]: Finished difference Result 86276 states and 375937 transitions. [2021-08-12 16:55:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 16:55:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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 78 [2021-08-12 16:55:52,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:55:53,602 INFO L225 Difference]: With dead ends: 86276 [2021-08-12 16:55:53,602 INFO L226 Difference]: Without dead ends: 62084 [2021-08-12 16:55:53,662 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 78.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:55:54,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62084 states. [2021-08-12 16:55:55,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62084 to 62084. [2021-08-12 16:55:56,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62084 states, 62083 states have (on average 4.362949599729395) internal successors, (270865), 62083 states have internal predecessors, (270865), 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) [2021-08-12 16:55:56,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62084 states to 62084 states and 270865 transitions. [2021-08-12 16:55:56,859 INFO L78 Accepts]: Start accepts. Automaton has 62084 states and 270865 transitions. Word has length 78 [2021-08-12 16:55:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:55:56,862 INFO L482 AbstractCegarLoop]: Abstraction has 62084 states and 270865 transitions. [2021-08-12 16:55:56,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2021-08-12 16:55:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 62084 states and 270865 transitions. [2021-08-12 16:55:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-08-12 16:55:56,926 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:55:56,926 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:55:56,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-12 16:55:56,927 INFO L430 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:55:56,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:55:56,927 INFO L82 PathProgramCache]: Analyzing trace with hash -129009747, now seen corresponding path program 1 times [2021-08-12 16:55:56,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:55:56,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413800459] [2021-08-12 16:55:56,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:55:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:55:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:55:57,028 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:55:57,028 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413800459] [2021-08-12 16:55:57,028 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413800459] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:55:57,028 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:55:57,028 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:55:57,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639675339] [2021-08-12 16:55:57,029 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:55:57,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:55:57,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:55:57,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:55:57,030 INFO L87 Difference]: Start difference. First operand 62084 states and 270865 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2021-08-12 16:55:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:55:58,811 INFO L93 Difference]: Finished difference Result 81884 states and 355525 transitions. [2021-08-12 16:55:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 16:55:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 80 [2021-08-12 16:55:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:55:59,424 INFO L225 Difference]: With dead ends: 81884 [2021-08-12 16:55:59,425 INFO L226 Difference]: Without dead ends: 59708 [2021-08-12 16:55:59,484 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 77.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:56:00,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59708 states. [2021-08-12 16:56:01,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59708 to 59708. [2021-08-12 16:56:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59708 states, 59707 states have (on average 4.347848660961026) internal successors, (259597), 59707 states have internal predecessors, (259597), 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) [2021-08-12 16:56:02,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59708 states to 59708 states and 259597 transitions. [2021-08-12 16:56:02,538 INFO L78 Accepts]: Start accepts. Automaton has 59708 states and 259597 transitions. Word has length 80 [2021-08-12 16:56:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:02,540 INFO L482 AbstractCegarLoop]: Abstraction has 59708 states and 259597 transitions. [2021-08-12 16:56:02,540 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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) [2021-08-12 16:56:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 59708 states and 259597 transitions. [2021-08-12 16:56:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-08-12 16:56:02,623 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:02,623 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:02,623 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-12 16:56:02,623 INFO L430 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:02,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:02,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1168196562, now seen corresponding path program 1 times [2021-08-12 16:56:02,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:02,624 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098828997] [2021-08-12 16:56:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:02,787 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:02,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098828997] [2021-08-12 16:56:02,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098828997] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:02,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:02,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:56:02,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061406392] [2021-08-12 16:56:02,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:56:02,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:02,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:56:02,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:56:02,790 INFO L87 Difference]: Start difference. First operand 59708 states and 259597 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2021-08-12 16:56:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:04,260 INFO L93 Difference]: Finished difference Result 74108 states and 320677 transitions. [2021-08-12 16:56:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 16:56:04,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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 82 [2021-08-12 16:56:04,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:04,721 INFO L225 Difference]: With dead ends: 74108 [2021-08-12 16:56:04,721 INFO L226 Difference]: Without dead ends: 54308 [2021-08-12 16:56:04,768 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:56:05,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54308 states. [2021-08-12 16:56:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54308 to 54308. [2021-08-12 16:56:06,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54308 states, 54307 states have (on average 4.3294050490728635) internal successors, (235117), 54307 states have internal predecessors, (235117), 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) [2021-08-12 16:56:07,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54308 states to 54308 states and 235117 transitions. [2021-08-12 16:56:07,499 INFO L78 Accepts]: Start accepts. Automaton has 54308 states and 235117 transitions. Word has length 82 [2021-08-12 16:56:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:07,500 INFO L482 AbstractCegarLoop]: Abstraction has 54308 states and 235117 transitions. [2021-08-12 16:56:07,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2021-08-12 16:56:07,500 INFO L276 IsEmpty]: Start isEmpty. Operand 54308 states and 235117 transitions. [2021-08-12 16:56:07,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-08-12 16:56:07,617 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:07,617 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:07,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-12 16:56:07,617 INFO L430 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:07,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:07,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1379699359, now seen corresponding path program 1 times [2021-08-12 16:56:07,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:07,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013558633] [2021-08-12 16:56:07,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:07,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:07,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:07,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013558633] [2021-08-12 16:56:07,755 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013558633] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:07,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:07,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-12 16:56:07,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066251169] [2021-08-12 16:56:07,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-12 16:56:07,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:07,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-12 16:56:07,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-12 16:56:07,757 INFO L87 Difference]: Start difference. First operand 54308 states and 235117 transitions. Second operand has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 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) [2021-08-12 16:56:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:09,417 INFO L93 Difference]: Finished difference Result 69830 states and 301345 transitions. [2021-08-12 16:56:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-12 16:56:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 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 83 [2021-08-12 16:56:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:09,973 INFO L225 Difference]: With dead ends: 69830 [2021-08-12 16:56:09,974 INFO L226 Difference]: Without dead ends: 54950 [2021-08-12 16:56:10,015 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 162.1ms TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-08-12 16:56:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54950 states. [2021-08-12 16:56:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54950 to 53228. [2021-08-12 16:56:12,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53228 states, 53227 states have (on average 4.323238206173558) internal successors, (230113), 53227 states have internal predecessors, (230113), 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) [2021-08-12 16:56:12,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53228 states to 53228 states and 230113 transitions. [2021-08-12 16:56:12,662 INFO L78 Accepts]: Start accepts. Automaton has 53228 states and 230113 transitions. Word has length 83 [2021-08-12 16:56:12,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:12,663 INFO L482 AbstractCegarLoop]: Abstraction has 53228 states and 230113 transitions. [2021-08-12 16:56:12,663 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.3) internal successors, (83), 10 states have internal predecessors, (83), 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) [2021-08-12 16:56:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 53228 states and 230113 transitions. [2021-08-12 16:56:12,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-08-12 16:56:12,828 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:12,828 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:12,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-12 16:56:12,829 INFO L430 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 425204255, now seen corresponding path program 1 times [2021-08-12 16:56:12,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:12,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446098263] [2021-08-12 16:56:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:13,117 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:13,117 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446098263] [2021-08-12 16:56:13,117 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446098263] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:13,117 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:13,117 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-12 16:56:13,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996031156] [2021-08-12 16:56:13,119 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-08-12 16:56:13,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:13,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-12 16:56:13,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-12 16:56:13,120 INFO L87 Difference]: Start difference. First operand 53228 states and 230113 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 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) [2021-08-12 16:56:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:14,923 INFO L93 Difference]: Finished difference Result 63868 states and 275003 transitions. [2021-08-12 16:56:14,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-12 16:56:14,924 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 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 84 [2021-08-12 16:56:14,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:15,434 INFO L225 Difference]: With dead ends: 63868 [2021-08-12 16:56:15,434 INFO L226 Difference]: Without dead ends: 53564 [2021-08-12 16:56:15,468 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 205.7ms TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-08-12 16:56:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53564 states. [2021-08-12 16:56:17,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53564 to 53564. [2021-08-12 16:56:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53564 states, 53563 states have (on average 4.323189515150384) internal successors, (231563), 53563 states have internal predecessors, (231563), 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) [2021-08-12 16:56:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53564 states to 53564 states and 231563 transitions. [2021-08-12 16:56:17,945 INFO L78 Accepts]: Start accepts. Automaton has 53564 states and 231563 transitions. Word has length 84 [2021-08-12 16:56:17,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:17,946 INFO L482 AbstractCegarLoop]: Abstraction has 53564 states and 231563 transitions. [2021-08-12 16:56:17,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 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) [2021-08-12 16:56:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 53564 states and 231563 transitions. [2021-08-12 16:56:18,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-12 16:56:18,071 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:18,071 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:18,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-12 16:56:18,072 INFO L430 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:18,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1467462400, now seen corresponding path program 1 times [2021-08-12 16:56:18,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:18,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487630991] [2021-08-12 16:56:18,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:18,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:18,390 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:18,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487630991] [2021-08-12 16:56:18,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487630991] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:18,391 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:18,391 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-12 16:56:18,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688215600] [2021-08-12 16:56:18,391 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-12 16:56:18,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:18,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-12 16:56:18,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-08-12 16:56:18,392 INFO L87 Difference]: Start difference. First operand 53564 states and 231563 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 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) [2021-08-12 16:56:20,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:20,658 INFO L93 Difference]: Finished difference Result 63868 states and 274723 transitions. [2021-08-12 16:56:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-12 16:56:20,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 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 85 [2021-08-12 16:56:20,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:21,309 INFO L225 Difference]: With dead ends: 63868 [2021-08-12 16:56:21,310 INFO L226 Difference]: Without dead ends: 54908 [2021-08-12 16:56:21,335 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 235.6ms TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-08-12 16:56:21,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54908 states. [2021-08-12 16:56:23,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54908 to 54908. [2021-08-12 16:56:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54908 states, 54907 states have (on average 4.316881271968966) internal successors, (237027), 54907 states have internal predecessors, (237027), 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) [2021-08-12 16:56:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54908 states to 54908 states and 237027 transitions. [2021-08-12 16:56:23,875 INFO L78 Accepts]: Start accepts. Automaton has 54908 states and 237027 transitions. Word has length 85 [2021-08-12 16:56:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:23,875 INFO L482 AbstractCegarLoop]: Abstraction has 54908 states and 237027 transitions. [2021-08-12 16:56:23,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 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) [2021-08-12 16:56:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54908 states and 237027 transitions. [2021-08-12 16:56:23,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-12 16:56:23,943 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:23,944 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:23,944 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-12 16:56:23,944 INFO L430 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:23,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1509607535, now seen corresponding path program 1 times [2021-08-12 16:56:23,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:23,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529505962] [2021-08-12 16:56:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:24,216 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:24,216 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529505962] [2021-08-12 16:56:24,216 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529505962] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:24,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:24,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-12 16:56:24,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430413953] [2021-08-12 16:56:24,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-12 16:56:24,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:24,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-12 16:56:24,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-08-12 16:56:24,218 INFO L87 Difference]: Start difference. First operand 54908 states and 237027 transitions. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2021-08-12 16:56:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:26,311 INFO L93 Difference]: Finished difference Result 66646 states and 286653 transitions. [2021-08-12 16:56:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-12 16:56:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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 85 [2021-08-12 16:56:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:26,672 INFO L225 Difference]: With dead ends: 66646 [2021-08-12 16:56:26,672 INFO L226 Difference]: Without dead ends: 55846 [2021-08-12 16:56:26,701 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 260.5ms TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-08-12 16:56:26,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55846 states. [2021-08-12 16:56:28,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55846 to 55846. [2021-08-12 16:56:28,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55846 states, 55845 states have (on average 4.319187035544812) internal successors, (241205), 55845 states have internal predecessors, (241205), 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) [2021-08-12 16:56:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55846 states to 55846 states and 241205 transitions. [2021-08-12 16:56:29,100 INFO L78 Accepts]: Start accepts. Automaton has 55846 states and 241205 transitions. Word has length 85 [2021-08-12 16:56:29,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:29,101 INFO L482 AbstractCegarLoop]: Abstraction has 55846 states and 241205 transitions. [2021-08-12 16:56:29,101 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 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) [2021-08-12 16:56:29,101 INFO L276 IsEmpty]: Start isEmpty. Operand 55846 states and 241205 transitions. [2021-08-12 16:56:29,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-12 16:56:29,175 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:29,175 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:29,175 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-12 16:56:29,176 INFO L430 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:29,176 INFO L82 PathProgramCache]: Analyzing trace with hash 2127135461, now seen corresponding path program 2 times [2021-08-12 16:56:29,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:29,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323171972] [2021-08-12 16:56:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:29,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:29,773 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:29,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323171972] [2021-08-12 16:56:29,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323171972] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:29,774 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:29,774 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-12 16:56:29,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830042978] [2021-08-12 16:56:29,774 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-12 16:56:29,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:29,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-12 16:56:29,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:56:29,775 INFO L87 Difference]: Start difference. First operand 55846 states and 241205 transitions. Second operand has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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) [2021-08-12 16:56:31,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:31,545 INFO L93 Difference]: Finished difference Result 68278 states and 293999 transitions. [2021-08-12 16:56:31,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-12 16:56:31,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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 85 [2021-08-12 16:56:31,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:31,926 INFO L225 Difference]: With dead ends: 68278 [2021-08-12 16:56:31,926 INFO L226 Difference]: Without dead ends: 56998 [2021-08-12 16:56:31,959 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 166.5ms TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-08-12 16:56:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56998 states. [2021-08-12 16:56:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56998 to 56998. [2021-08-12 16:56:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56998 states, 56997 states have (on average 4.320841447795498) internal successors, (246275), 56997 states have internal predecessors, (246275), 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) [2021-08-12 16:56:34,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56998 states to 56998 states and 246275 transitions. [2021-08-12 16:56:34,386 INFO L78 Accepts]: Start accepts. Automaton has 56998 states and 246275 transitions. Word has length 85 [2021-08-12 16:56:34,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:34,386 INFO L482 AbstractCegarLoop]: Abstraction has 56998 states and 246275 transitions. [2021-08-12 16:56:34,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 11 states have internal predecessors, (85), 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) [2021-08-12 16:56:34,386 INFO L276 IsEmpty]: Start isEmpty. Operand 56998 states and 246275 transitions. [2021-08-12 16:56:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-12 16:56:34,716 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:34,716 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:34,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-12 16:56:34,717 INFO L430 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:34,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:34,717 INFO L82 PathProgramCache]: Analyzing trace with hash 855193005, now seen corresponding path program 1 times [2021-08-12 16:56:34,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:34,717 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305836181] [2021-08-12 16:56:34,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:35,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:35,084 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:35,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305836181] [2021-08-12 16:56:35,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305836181] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:35,084 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:35,084 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-08-12 16:56:35,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116881904] [2021-08-12 16:56:35,084 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-08-12 16:56:35,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:35,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-12 16:56:35,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-08-12 16:56:35,087 INFO L87 Difference]: Start difference. First operand 56998 states and 246275 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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) [2021-08-12 16:56:37,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:37,048 INFO L93 Difference]: Finished difference Result 65482 states and 281827 transitions. [2021-08-12 16:56:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-12 16:56:37,049 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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 86 [2021-08-12 16:56:37,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:37,651 INFO L225 Difference]: With dead ends: 65482 [2021-08-12 16:56:37,651 INFO L226 Difference]: Without dead ends: 57698 [2021-08-12 16:56:37,689 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 191.3ms TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-08-12 16:56:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57698 states. [2021-08-12 16:56:39,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57698 to 56970. [2021-08-12 16:56:39,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56970 states, 56969 states have (on average 4.316645895135951) internal successors, (245915), 56969 states have internal predecessors, (245915), 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) [2021-08-12 16:56:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56970 states to 56970 states and 245915 transitions. [2021-08-12 16:56:40,593 INFO L78 Accepts]: Start accepts. Automaton has 56970 states and 245915 transitions. Word has length 86 [2021-08-12 16:56:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:40,594 INFO L482 AbstractCegarLoop]: Abstraction has 56970 states and 245915 transitions. [2021-08-12 16:56:40,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 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) [2021-08-12 16:56:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 56970 states and 245915 transitions. [2021-08-12 16:56:40,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-12 16:56:40,691 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:40,691 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:40,691 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-12 16:56:40,691 INFO L430 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:40,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:40,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1472720931, now seen corresponding path program 2 times [2021-08-12 16:56:40,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:40,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631436868] [2021-08-12 16:56:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:40,835 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:40,835 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631436868] [2021-08-12 16:56:40,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631436868] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:40,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:40,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-12 16:56:40,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449338969] [2021-08-12 16:56:40,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-12 16:56:40,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-12 16:56:40,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:56:40,838 INFO L87 Difference]: Start difference. First operand 56970 states and 245915 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 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) [2021-08-12 16:56:43,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:43,095 INFO L93 Difference]: Finished difference Result 72328 states and 311971 transitions. [2021-08-12 16:56:43,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-12 16:56:43,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 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 86 [2021-08-12 16:56:43,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:43,689 INFO L225 Difference]: With dead ends: 72328 [2021-08-12 16:56:43,689 INFO L226 Difference]: Without dead ends: 61520 [2021-08-12 16:56:43,729 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 259.8ms TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2021-08-12 16:56:43,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61520 states. [2021-08-12 16:56:45,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61520 to 57572. [2021-08-12 16:56:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57572 states, 57571 states have (on average 4.316704590853034) internal successors, (248517), 57571 states have internal predecessors, (248517), 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) [2021-08-12 16:56:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57572 states to 57572 states and 248517 transitions. [2021-08-12 16:56:46,181 INFO L78 Accepts]: Start accepts. Automaton has 57572 states and 248517 transitions. Word has length 86 [2021-08-12 16:56:46,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:46,181 INFO L482 AbstractCegarLoop]: Abstraction has 57572 states and 248517 transitions. [2021-08-12 16:56:46,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 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) [2021-08-12 16:56:46,181 INFO L276 IsEmpty]: Start isEmpty. Operand 57572 states and 248517 transitions. [2021-08-12 16:56:46,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-08-12 16:56:46,269 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:46,269 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:46,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-12 16:56:46,269 INFO L430 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:46,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:46,270 INFO L82 PathProgramCache]: Analyzing trace with hash -350495923, now seen corresponding path program 3 times [2021-08-12 16:56:46,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:46,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462515039] [2021-08-12 16:56:46,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:46,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:46,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:46,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462515039] [2021-08-12 16:56:46,466 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462515039] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:46,466 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:46,466 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-12 16:56:46,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309837119] [2021-08-12 16:56:46,466 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-08-12 16:56:46,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:46,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-12 16:56:46,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-12 16:56:46,467 INFO L87 Difference]: Start difference. First operand 57572 states and 248517 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2021-08-12 16:56:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:49,220 INFO L93 Difference]: Finished difference Result 71180 states and 306647 transitions. [2021-08-12 16:56:49,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-12 16:56:49,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 86 [2021-08-12 16:56:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:49,623 INFO L225 Difference]: With dead ends: 71180 [2021-08-12 16:56:49,623 INFO L226 Difference]: Without dead ends: 62724 [2021-08-12 16:56:49,653 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 259.6ms TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2021-08-12 16:56:49,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62724 states. [2021-08-12 16:56:51,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62724 to 59588. [2021-08-12 16:56:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59588 states, 59587 states have (on average 4.317602832832665) internal successors, (257273), 59587 states have internal predecessors, (257273), 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) [2021-08-12 16:56:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59588 states to 59588 states and 257273 transitions. [2021-08-12 16:56:52,385 INFO L78 Accepts]: Start accepts. Automaton has 59588 states and 257273 transitions. Word has length 86 [2021-08-12 16:56:52,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:56:52,386 INFO L482 AbstractCegarLoop]: Abstraction has 59588 states and 257273 transitions. [2021-08-12 16:56:52,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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) [2021-08-12 16:56:52,386 INFO L276 IsEmpty]: Start isEmpty. Operand 59588 states and 257273 transitions. [2021-08-12 16:56:52,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:56:52,483 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:56:52,483 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:56:52,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-12 16:56:52,483 INFO L430 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:56:52,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:56:52,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1087591396, now seen corresponding path program 1 times [2021-08-12 16:56:52,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:56:52,484 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611157198] [2021-08-12 16:56:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:56:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:56:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:56:52,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:56:52,607 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611157198] [2021-08-12 16:56:52,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611157198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:56:52,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:56:52,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-12 16:56:52,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101934644] [2021-08-12 16:56:52,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-08-12 16:56:52,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:56:52,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-12 16:56:52,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:56:52,608 INFO L87 Difference]: Start difference. First operand 59588 states and 257273 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 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) [2021-08-12 16:56:55,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:56:55,658 INFO L93 Difference]: Finished difference Result 75436 states and 325044 transitions. [2021-08-12 16:56:55,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-12 16:56:55,659 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 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 87 [2021-08-12 16:56:55,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:56:56,628 INFO L225 Difference]: With dead ends: 75436 [2021-08-12 16:56:56,628 INFO L226 Difference]: Without dead ends: 68492 [2021-08-12 16:56:56,748 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 146.3ms TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-08-12 16:56:57,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68492 states. [2021-08-12 16:56:59,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68492 to 61394. [2021-08-12 16:56:59,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61394 states, 61393 states have (on average 4.3236688221784245) internal successors, (265443), 61393 states have internal predecessors, (265443), 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) [2021-08-12 16:56:59,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61394 states to 61394 states and 265443 transitions. [2021-08-12 16:57:00,039 INFO L78 Accepts]: Start accepts. Automaton has 61394 states and 265443 transitions. Word has length 87 [2021-08-12 16:57:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:00,039 INFO L482 AbstractCegarLoop]: Abstraction has 61394 states and 265443 transitions. [2021-08-12 16:57:00,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 11 states have internal predecessors, (87), 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) [2021-08-12 16:57:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 61394 states and 265443 transitions. [2021-08-12 16:57:00,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:57:00,142 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:00,142 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:00,142 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-12 16:57:00,142 INFO L430 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:00,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:00,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1724993808, now seen corresponding path program 2 times [2021-08-12 16:57:00,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:00,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889485056] [2021-08-12 16:57:00,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:00,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:00,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889485056] [2021-08-12 16:57:00,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889485056] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:00,366 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:00,367 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-12 16:57:00,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544288812] [2021-08-12 16:57:00,367 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-08-12 16:57:00,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:00,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-12 16:57:00,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-08-12 16:57:00,368 INFO L87 Difference]: Start difference. First operand 61394 states and 265443 transitions. Second operand has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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) [2021-08-12 16:57:03,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:03,788 INFO L93 Difference]: Finished difference Result 73952 states and 318263 transitions. [2021-08-12 16:57:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-12 16:57:03,789 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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 87 [2021-08-12 16:57:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:04,460 INFO L225 Difference]: With dead ends: 73952 [2021-08-12 16:57:04,460 INFO L226 Difference]: Without dead ends: 67008 [2021-08-12 16:57:04,488 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 259.5ms TimeCoverageRelationStatistics Valid=117, Invalid=303, Unknown=0, NotChecked=0, Total=420 [2021-08-12 16:57:04,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67008 states. [2021-08-12 16:57:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67008 to 61324. [2021-08-12 16:57:06,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61324 states, 61323 states have (on average 4.324201360011741) internal successors, (265173), 61323 states have internal predecessors, (265173), 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) [2021-08-12 16:57:07,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61324 states to 61324 states and 265173 transitions. [2021-08-12 16:57:07,504 INFO L78 Accepts]: Start accepts. Automaton has 61324 states and 265173 transitions. Word has length 87 [2021-08-12 16:57:07,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:07,505 INFO L482 AbstractCegarLoop]: Abstraction has 61324 states and 265173 transitions. [2021-08-12 16:57:07,505 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 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) [2021-08-12 16:57:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 61324 states and 265173 transitions. [2021-08-12 16:57:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:57:07,626 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:07,626 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:07,627 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-12 16:57:07,627 INFO L430 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:07,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:07,627 INFO L82 PathProgramCache]: Analyzing trace with hash -889594318, now seen corresponding path program 1 times [2021-08-12 16:57:07,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:07,627 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236148667] [2021-08-12 16:57:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:07,854 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:07,854 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236148667] [2021-08-12 16:57:07,854 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236148667] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:07,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:07,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-12 16:57:07,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416284340] [2021-08-12 16:57:07,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-12 16:57:07,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:07,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-12 16:57:07,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-08-12 16:57:07,856 INFO L87 Difference]: Start difference. First operand 61324 states and 265173 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-08-12 16:57:11,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:11,012 INFO L93 Difference]: Finished difference Result 68812 states and 296245 transitions. [2021-08-12 16:57:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-12 16:57:11,012 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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 87 [2021-08-12 16:57:11,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:11,577 INFO L225 Difference]: With dead ends: 68812 [2021-08-12 16:57:11,577 INFO L226 Difference]: Without dead ends: 61612 [2021-08-12 16:57:11,607 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 372.8ms TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2021-08-12 16:57:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61612 states. [2021-08-12 16:57:13,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61612 to 59092. [2021-08-12 16:57:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59092 states, 59091 states have (on average 4.317053358379448) internal successors, (255099), 59091 states have internal predecessors, (255099), 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) [2021-08-12 16:57:14,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59092 states to 59092 states and 255099 transitions. [2021-08-12 16:57:14,701 INFO L78 Accepts]: Start accepts. Automaton has 59092 states and 255099 transitions. Word has length 87 [2021-08-12 16:57:14,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:14,702 INFO L482 AbstractCegarLoop]: Abstraction has 59092 states and 255099 transitions. [2021-08-12 16:57:14,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-08-12 16:57:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 59092 states and 255099 transitions. [2021-08-12 16:57:14,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:57:14,807 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:14,807 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:14,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-12 16:57:14,807 INFO L430 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:14,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:14,808 INFO L82 PathProgramCache]: Analyzing trace with hash -864779378, now seen corresponding path program 3 times [2021-08-12 16:57:14,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:14,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342658471] [2021-08-12 16:57:14,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:15,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:15,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:15,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342658471] [2021-08-12 16:57:15,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342658471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:15,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:15,039 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-08-12 16:57:15,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878940334] [2021-08-12 16:57:15,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-08-12 16:57:15,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:15,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-12 16:57:15,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-08-12 16:57:15,040 INFO L87 Difference]: Start difference. First operand 59092 states and 255099 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-08-12 16:57:19,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:19,084 INFO L93 Difference]: Finished difference Result 85468 states and 364521 transitions. [2021-08-12 16:57:19,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-12 16:57:19,084 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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 87 [2021-08-12 16:57:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:19,554 INFO L225 Difference]: With dead ends: 85468 [2021-08-12 16:57:19,554 INFO L226 Difference]: Without dead ends: 70796 [2021-08-12 16:57:19,588 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 166.3ms TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2021-08-12 16:57:19,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70796 states. [2021-08-12 16:57:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70796 to 60324. [2021-08-12 16:57:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60324 states, 60323 states have (on average 4.277025346882615) internal successors, (258003), 60323 states have internal predecessors, (258003), 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) [2021-08-12 16:57:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60324 states to 60324 states and 258003 transitions. [2021-08-12 16:57:22,964 INFO L78 Accepts]: Start accepts. Automaton has 60324 states and 258003 transitions. Word has length 87 [2021-08-12 16:57:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:22,964 INFO L482 AbstractCegarLoop]: Abstraction has 60324 states and 258003 transitions. [2021-08-12 16:57:22,964 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 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) [2021-08-12 16:57:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 60324 states and 258003 transitions. [2021-08-12 16:57:23,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:57:23,073 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:23,073 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:23,073 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-12 16:57:23,073 INFO L430 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:23,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:23,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1964884040, now seen corresponding path program 1 times [2021-08-12 16:57:23,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:23,074 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385842260] [2021-08-12 16:57:23,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:23,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:23,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385842260] [2021-08-12 16:57:23,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385842260] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:23,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:23,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:57:23,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183522226] [2021-08-12 16:57:23,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:57:23,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:23,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:57:23,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:57:23,153 INFO L87 Difference]: Start difference. First operand 60324 states and 258003 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2021-08-12 16:57:27,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:27,878 INFO L93 Difference]: Finished difference Result 95685 states and 407656 transitions. [2021-08-12 16:57:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-12 16:57:27,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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 87 [2021-08-12 16:57:27,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:28,795 INFO L225 Difference]: With dead ends: 95685 [2021-08-12 16:57:28,795 INFO L226 Difference]: Without dead ends: 58476 [2021-08-12 16:57:28,861 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.8ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-12 16:57:29,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58476 states. [2021-08-12 16:57:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58476 to 54276. [2021-08-12 16:57:31,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54276 states, 54275 states have (on average 4.178332565637955) internal successors, (226779), 54275 states have internal predecessors, (226779), 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) [2021-08-12 16:57:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54276 states to 54276 states and 226779 transitions. [2021-08-12 16:57:32,265 INFO L78 Accepts]: Start accepts. Automaton has 54276 states and 226779 transitions. Word has length 87 [2021-08-12 16:57:32,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:32,266 INFO L482 AbstractCegarLoop]: Abstraction has 54276 states and 226779 transitions. [2021-08-12 16:57:32,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2021-08-12 16:57:32,266 INFO L276 IsEmpty]: Start isEmpty. Operand 54276 states and 226779 transitions. [2021-08-12 16:57:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-08-12 16:57:32,401 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:32,401 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:32,401 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-12 16:57:32,402 INFO L430 AbstractCegarLoop]: === Iteration 18 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:32,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1755142550, now seen corresponding path program 2 times [2021-08-12 16:57:32,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:32,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878590932] [2021-08-12 16:57:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:32,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:32,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878590932] [2021-08-12 16:57:32,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878590932] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:32,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:32,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:57:32,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75738171] [2021-08-12 16:57:32,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:57:32,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:32,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:57:32,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:57:32,459 INFO L87 Difference]: Start difference. First operand 54276 states and 226779 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2021-08-12 16:57:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:36,016 INFO L93 Difference]: Finished difference Result 86028 states and 358575 transitions. [2021-08-12 16:57:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 16:57:36,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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 87 [2021-08-12 16:57:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:36,531 INFO L225 Difference]: With dead ends: 86028 [2021-08-12 16:57:36,531 INFO L226 Difference]: Without dead ends: 50016 [2021-08-12 16:57:36,578 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:57:36,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50016 states. [2021-08-12 16:57:38,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50016 to 50016. [2021-08-12 16:57:38,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50016 states, 50015 states have (on average 4.125142457262821) internal successors, (206319), 50015 states have internal predecessors, (206319), 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) [2021-08-12 16:57:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50016 states to 50016 states and 206319 transitions. [2021-08-12 16:57:39,075 INFO L78 Accepts]: Start accepts. Automaton has 50016 states and 206319 transitions. Word has length 87 [2021-08-12 16:57:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:39,075 INFO L482 AbstractCegarLoop]: Abstraction has 50016 states and 206319 transitions. [2021-08-12 16:57:39,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2021-08-12 16:57:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand 50016 states and 206319 transitions. [2021-08-12 16:57:39,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-08-12 16:57:39,155 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:39,155 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:39,155 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-12 16:57:39,155 INFO L430 AbstractCegarLoop]: === Iteration 19 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:39,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:39,156 INFO L82 PathProgramCache]: Analyzing trace with hash -928030478, now seen corresponding path program 1 times [2021-08-12 16:57:39,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:39,156 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196062775] [2021-08-12 16:57:39,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:39,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:39,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196062775] [2021-08-12 16:57:39,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196062775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:39,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:39,685 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-12 16:57:39,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708542730] [2021-08-12 16:57:39,686 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-08-12 16:57:39,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:39,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-12 16:57:39,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-12 16:57:39,686 INFO L87 Difference]: Start difference. First operand 50016 states and 206319 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2021-08-12 16:57:42,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:42,511 INFO L93 Difference]: Finished difference Result 70212 states and 287346 transitions. [2021-08-12 16:57:42,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-12 16:57:42,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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 88 [2021-08-12 16:57:42,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:42,848 INFO L225 Difference]: With dead ends: 70212 [2021-08-12 16:57:42,848 INFO L226 Difference]: Without dead ends: 38460 [2021-08-12 16:57:42,897 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-12 16:57:43,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38460 states. [2021-08-12 16:57:44,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38460 to 38460. [2021-08-12 16:57:44,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38460 states, 38459 states have (on average 4.003146207649705) internal successors, (153957), 38459 states have internal predecessors, (153957), 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) [2021-08-12 16:57:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38460 states to 38460 states and 153957 transitions. [2021-08-12 16:57:44,937 INFO L78 Accepts]: Start accepts. Automaton has 38460 states and 153957 transitions. Word has length 88 [2021-08-12 16:57:44,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:44,938 INFO L482 AbstractCegarLoop]: Abstraction has 38460 states and 153957 transitions. [2021-08-12 16:57:44,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 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) [2021-08-12 16:57:44,938 INFO L276 IsEmpty]: Start isEmpty. Operand 38460 states and 153957 transitions. [2021-08-12 16:57:45,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-12 16:57:45,017 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:45,017 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:45,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-12 16:57:45,017 INFO L430 AbstractCegarLoop]: === Iteration 20 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:45,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:45,017 INFO L82 PathProgramCache]: Analyzing trace with hash -344403211, now seen corresponding path program 1 times [2021-08-12 16:57:45,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:45,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710704075] [2021-08-12 16:57:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-12 16:57:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-12 16:57:45,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-12 16:57:45,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710704075] [2021-08-12 16:57:45,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710704075] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-12 16:57:45,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-12 16:57:45,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-12 16:57:45,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228720182] [2021-08-12 16:57:45,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-08-12 16:57:45,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-12 16:57:45,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-12 16:57:45,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-12 16:57:45,126 INFO L87 Difference]: Start difference. First operand 38460 states and 153957 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2021-08-12 16:57:48,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-12 16:57:48,523 INFO L93 Difference]: Finished difference Result 63586 states and 252641 transitions. [2021-08-12 16:57:48,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-12 16:57:48,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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 90 [2021-08-12 16:57:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-12 16:57:49,091 INFO L225 Difference]: With dead ends: 63586 [2021-08-12 16:57:49,091 INFO L226 Difference]: Without dead ends: 40188 [2021-08-12 16:57:49,122 INFO L806 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-12 16:57:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40188 states. [2021-08-12 16:57:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40188 to 37392. [2021-08-12 16:57:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37392 states, 37391 states have (on average 3.912759755021262) internal successors, (146302), 37391 states have internal predecessors, (146302), 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) [2021-08-12 16:57:50,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37392 states to 37392 states and 146302 transitions. [2021-08-12 16:57:50,927 INFO L78 Accepts]: Start accepts. Automaton has 37392 states and 146302 transitions. Word has length 90 [2021-08-12 16:57:50,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-12 16:57:50,928 INFO L482 AbstractCegarLoop]: Abstraction has 37392 states and 146302 transitions. [2021-08-12 16:57:50,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2021-08-12 16:57:50,928 INFO L276 IsEmpty]: Start isEmpty. Operand 37392 states and 146302 transitions. [2021-08-12 16:57:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-08-12 16:57:51,005 INFO L542 BasicCegarLoop]: Found error trace [2021-08-12 16:57:51,005 INFO L550 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-12 16:57:51,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-12 16:57:51,006 INFO L430 AbstractCegarLoop]: === Iteration 21 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-08-12 16:57:51,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-12 16:57:51,006 INFO L82 PathProgramCache]: Analyzing trace with hash 750527785, now seen corresponding path program 1 times [2021-08-12 16:57:51,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-12 16:57:51,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238107449] [2021-08-12 16:57:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-12 16:57:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat